Comment parsing: allow "\param ..." to describe variadic arguments

Original patch by Fariborz Jahanian; extended by me.

Fixes rdar://14124644


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184688 91177308-0d34-0410-b5e6-96231b3b80d8

12 files changed, 188 insertions, 61 deletions

diff --git a/bindings/xml/comment-xml-schema.rng b/bindings/xml/comment-xml-schema.rng
index 22371dfed1..13cf7addec 100644
--- a/bindings/xml/comment-xml-schema.rng
+++ b/bindings/xml/comment-xml-schema.rng
@@ -410,9 +410,14 @@
             </data>
           </element>
           <optional>
-            <element name="Index">
-              <data type="nonNegativeInteger" />
-            </element>
+            <choice>
+              <element name="Index">
+                <data type="nonNegativeInteger" />
+              </element>
+              <element name="IsVarArg">
+                <empty />
+              </element>
+            </choice>
           </optional>
           <element name="Direction">
             <attribute name="isExplicit">
diff --git a/include/clang/AST/Comment.h b/include/clang/AST/Comment.h
index c02a82f0fa..613ad5308f 100644
--- a/include/clang/AST/Comment.h
+++ b/include/clang/AST/Comment.h
@@ -699,7 +699,10 @@ private:
   unsigned ParamIndex;
 
 public:
-  enum { InvalidParamIndex = ~0U };
+  enum {
+    InvalidParamIndex = ~0U,
+    VarArgParamIndex = InvalidParamIndex - 1U
+  };
 
   ParamCommandComment(SourceLocation LocBegin,
                       SourceLocation LocEnd,
@@ -755,14 +758,25 @@ public:
     return ParamIndex != InvalidParamIndex;
   }
 
+  bool isVarArgParam() const LLVM_READONLY {
+    return ParamIndex == VarArgParamIndex;
+  }
+
+  void setIsVarArgParam() {
+    ParamIndex = VarArgParamIndex;
+    assert(isParamIndexValid());
+  }
+
   unsigned getParamIndex() const LLVM_READONLY {
     assert(isParamIndexValid());
+    assert(!isVarArgParam());
     return ParamIndex;
   }
 
   void setParamIndex(unsigned Index) {
     ParamIndex = Index;
     assert(isParamIndexValid());
+    assert(!isVarArgParam());
   }
 };
 
diff --git a/include/clang/AST/CommentSema.h b/include/clang/AST/CommentSema.h
index c6b59bb11b..39109602b1 100644
--- a/include/clang/AST/CommentSema.h
+++ b/include/clang/AST/CommentSema.h
@@ -212,6 +212,7 @@ public:
   /// \returns \c true if declaration that this comment is attached to declares
   /// a function pointer.
   bool isFunctionPointerVarDecl();
+  bool isFunctionOrMethodVariadic();
   bool isObjCMethodDecl();
   bool isObjCPropertyDecl();
   bool isTemplateOrSpecialization();
diff --git a/lib/AST/Comment.cpp b/lib/AST/Comment.cpp
index 68c73fd48e..058485e3fd 100644
--- a/lib/AST/Comment.cpp
+++ b/lib/AST/Comment.cpp
@@ -293,6 +293,8 @@ void DeclInfo::fill() {
 
 StringRef ParamCommandComment::getParamName(const FullComment *FC) const {
   assert(isParamIndexValid());
+  if (isVarArgParam())
+    return "...";
   return FC->getThisDeclInfo()->ParamVars[getParamIndex()]->getName();
 }
 
diff --git a/lib/AST/CommentSema.cpp b/lib/AST/CommentSema.cpp
index 55ccfb339d..c0dc647ca4 100644
--- a/lib/AST/CommentSema.cpp
+++ b/lib/AST/CommentSema.cpp
@@ -726,6 +726,10 @@ void Sema::resolveParamCommandIndexes(const FullComment *FC) {
     // Check that referenced parameter name is in the function decl.
     const unsigned ResolvedParamIndex = resolveParmVarReference(ParamName,
                                                                 ParamVars);
+    if (ResolvedParamIndex == ParamCommandComment::VarArgParamIndex) {
+      PCC->setIsVarArgParam();
+      continue;
+    }
     if (ResolvedParamIndex == ParamCommandComment::InvalidParamIndex) {
       UnresolvedParamCommands.push_back(PCC);
       continue;
@@ -796,7 +800,19 @@ bool Sema::isAnyFunctionDecl() {
   return isFunctionDecl() && ThisDeclInfo->CurrentDecl &&
          isa<FunctionDecl>(ThisDeclInfo->CurrentDecl);
 }
-  
+
+bool Sema::isFunctionOrMethodVariadic() {
+  if (!isAnyFunctionDecl() && !isObjCMethodDecl())
+    return false;
+  if (const FunctionDecl *FD =
+        dyn_cast<FunctionDecl>(ThisDeclInfo->CurrentDecl))
+    return FD->isVariadic();
+  if (const ObjCMethodDecl *MD =
+        dyn_cast<ObjCMethodDecl>(ThisDeclInfo->CurrentDecl))
+    return MD->isVariadic();
+  return false;
+}
+
 bool Sema::isObjCMethodDecl() {
   return isFunctionDecl() && ThisDeclInfo->CurrentDecl &&
          isa<ObjCMethodDecl>(ThisDeclInfo->CurrentDecl);
@@ -915,6 +931,8 @@ unsigned Sema::resolveParmVarReference(StringRef Name,
     if (II && II->getName() == Name)
       return i;
   }
+  if (Name == "..." && isFunctionOrMethodVariadic())
+    return ParamCommandComment::VarArgParamIndex;
   return ParamCommandComment::InvalidParamIndex;
 }
 
diff --git a/test/Index/Inputs/CommentXML/invalid-function-13.xml b/test/Index/Inputs/CommentXML/invalid-function-13.xml
new file mode 100644
index 0000000000..14cd31bfa4
--- /dev/null
+++ b/test/Index/Inputs/CommentXML/invalid-function-13.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Function>
+<Name>aaa</Name>
+<Abstract><Para>Aaa.</Para></Abstract>
+<Parameters>
+  <Parameter>
+    <Name>x1</Name>
+    <IsVarArg />
+    <Discussion><Para>Bbb</Para></Discussion>
+  </Parameter>
+</Parameters>
+</Function>
+
diff --git a/test/Index/Inputs/CommentXML/valid-function-07.xml b/test/Index/Inputs/CommentXML/valid-function-07.xml
index 9ff2f63d85..e9f5911537 100644
--- a/test/Index/Inputs/CommentXML/valid-function-07.xml
+++ b/test/Index/Inputs/CommentXML/valid-function-07.xml
@@ -20,14 +20,20 @@
     <Direction isExplicit="1">in,out</Direction>
     <Discussion><Para>Ddd</Para></Discussion>
   </Parameter>
+  <Parameter>
+    <Name>x4</Name>
+    <IsVarArg />
+    <Direction isExplicit="0">in</Direction>
+    <Discussion><Para>Eee</Para></Discussion>
+  </Parameter>
 </Parameters>
 <ResultDiscussion>
-  <Para>Eee.</Para>
-  <Para>Fff</Para>
+  <Para>Fff.</Para>
+  <Para>Ggg</Para>
 </ResultDiscussion>
 <Discussion>
-  <Para>Ggg</Para>
-  <Verbatim xml:space="preserve" kind="verbatim">Hhh</Verbatim>
+  <Para>Hhh</Para>
+  <Verbatim xml:space="preserve" kind="verbatim">Iii</Verbatim>
 </Discussion>
 </Function>
 
diff --git a/test/Index/comment-to-html-xml-conversion.cpp b/test/Index/comment-to-html-xml-conversion.cpp
index 78fd793deb..b70259ad12 100644
--- a/test/Index/comment-to-html-xml-conversion.cpp
+++ b/test/Index/comment-to-html-xml-conversion.cpp
@@ -271,12 +271,29 @@ void comment_to_html_conversion_16(int x1, int x2);
 // CHECK-NEXT:         (CXComment_Paragraph
 // CHECK-NEXT:           (CXComment_Text Text=[ Aaa.]))))]
 
+/// \param x1 Aaa.
+/// \param ... Bbb.
+void comment_to_html_conversion_17(int x1, ...);
+
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_17:{{.*}} FullCommentAsHTML=[<dl><dt class="param-name-index-0">x1</dt><dd class="param-descr-index-0"> Aaa. </dd><dt class="param-name-index-vararg">...</dt><dd class="param-descr-index-vararg"> Bbb.</dd></dl>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_17</Name><USR>c:@F@comment_to_html_conversion_17#I.#</USR><Declaration>void comment_to_html_conversion_17(int x1, ...)</Declaration><Parameters><Parameter><Name>x1</Name><Index>0</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Aaa. </Para></Discussion></Parameter><Parameter><Name>...</Name><IsVarArg /><Direction isExplicit="0">in</Direction><Discussion><Para> Bbb.</Para></Discussion></Parameter></Parameters></Function>]
+// CHECK-NEXT:  CommentAST=[
+// CHECK-NEXT:    (CXComment_FullComment
+// CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
+// CHECK-NEXT:         (CXComment_Text Text=[ ] IsWhitespace))
+// CHECK-NEXT:       (CXComment_ParamCommand in implicitly ParamName=[x1] ParamIndex=0
+// CHECK-NEXT:         (CXComment_Paragraph
+// CHECK-NEXT:           (CXComment_Text Text=[ Aaa.] HasTrailingNewline)
+// CHECK-NEXT:           (CXComment_Text Text=[ ] IsWhitespace)))
+// CHECK-NEXT:       (CXComment_ParamCommand in implicitly ParamName=[...] ParamIndex=4294967295
+// CHECK-NEXT:         (CXComment_Paragraph
+// CHECK-NEXT:           (CXComment_Text Text=[ Bbb.]))))] Extent=[276:1 - 276:48]
+
 /// \tparam
 /// \param aaa Blah blah
 template<typename T>
-void comment_to_html_conversion_17(T aaa);
+void comment_to_html_conversion_18(T aaa);
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_17:{{.*}} FullCommentAsHTML=[<dl><dt class="param-name-index-0">aaa</dt><dd class="param-descr-index-0"> Blah blah</dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_17</Name><USR>c:@FT@&gt;1#Tcomment_to_html_conversion_17#t0.0#</USR><Declaration>template &lt;typename T&gt; void comment_to_html_conversion_17(T aaa)</Declaration><Parameters><Parameter><Name>aaa</Name><Index>0</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Blah blah</Para></Discussion></Parameter></Parameters></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_18:{{.*}} FullCommentAsHTML=[<dl><dt class="param-name-index-0">aaa</dt><dd class="param-descr-index-0"> Blah blah</dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_18</Name><USR>c:@FT@&gt;1#Tcomment_to_html_conversion_18#t0.0#</USR><Declaration>template &lt;typename T&gt; void comment_to_html_conversion_18(T aaa)</Declaration><Parameters><Parameter><Name>aaa</Name><Index>0</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Blah blah</Para></Discussion></Parameter></Parameters></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -291,9 +308,9 @@ void comment_to_html_conversion_17(T aaa);
 /// \tparam T
 /// \param aaa Blah blah
 template<typename T>
-void comment_to_html_conversion_18(T aaa);
+void comment_to_html_conversion_19(T aaa);
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_18:{{.*}} FullCommentAsHTML=[<dl><dt class="param-name-index-0">aaa</dt><dd class="param-descr-index-0"> Blah blah</dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_18</Name><USR>c:@FT@&gt;1#Tcomment_to_html_conversion_18#t0.0#</USR><Declaration>template &lt;typename T&gt; void comment_to_html_conversion_18(T aaa)</Declaration><Parameters><Parameter><Name>aaa</Name><Index>0</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Blah blah</Para></Discussion></Parameter></Parameters></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_19:{{.*}} FullCommentAsHTML=[<dl><dt class="param-name-index-0">aaa</dt><dd class="param-descr-index-0"> Blah blah</dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_19</Name><USR>c:@FT@&gt;1#Tcomment_to_html_conversion_19#t0.0#</USR><Declaration>template &lt;typename T&gt; void comment_to_html_conversion_19(T aaa)</Declaration><Parameters><Parameter><Name>aaa</Name><Index>0</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Blah blah</Para></Discussion></Parameter></Parameters></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -308,9 +325,9 @@ void comment_to_html_conversion_18(T aaa);
 /// \tparam T2 Bbb
 /// \tparam T1 Aaa
 template<typename T1, typename T2>
-void comment_to_html_conversion_19(T1 aaa, T2 bbb);
+void comment_to_html_conversion_20(T1 aaa, T2 bbb);
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_19:{{.*}} FullCommentAsHTML=[<dl><dt class="tparam-name-index-0">T1</dt><dd class="tparam-descr-index-0"> Aaa</dd><dt class="tparam-name-index-1">T2</dt><dd class="tparam-descr-index-1"> Bbb </dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_19</Name><USR>c:@FT@&gt;2#T#Tcomment_to_html_conversion_19#t0.0#t0.1#</USR><Declaration>template &lt;typename T1, typename T2&gt;\nvoid comment_to_html_conversion_19(T1 aaa, T2 bbb)</Declaration><TemplateParameters><Parameter><Name>T1</Name><Index>0</Index><Discussion><Para> Aaa</Para></Discussion></Parameter><Parameter><Name>T2</Name><Index>1</Index><Discussion><Para> Bbb </Para></Discussion></Parameter></TemplateParameters></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_20:{{.*}} FullCommentAsHTML=[<dl><dt class="tparam-name-index-0">T1</dt><dd class="tparam-descr-index-0"> Aaa</dd><dt class="tparam-name-index-1">T2</dt><dd class="tparam-descr-index-1"> Bbb </dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_20</Name><USR>c:@FT@&gt;2#T#Tcomment_to_html_conversion_20#t0.0#t0.1#</USR><Declaration>template &lt;typename T1, typename T2&gt;\nvoid comment_to_html_conversion_20(T1 aaa, T2 bbb)</Declaration><TemplateParameters><Parameter><Name>T1</Name><Index>0</Index><Discussion><Para> Aaa</Para></Discussion></Parameter><Parameter><Name>T2</Name><Index>1</Index><Discussion><Para> Bbb </Para></Discussion></Parameter></TemplateParameters></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -328,9 +345,9 @@ void comment_to_html_conversion_19(T1 aaa, T2 bbb);
 /// \tparam V Ccc
 /// \tparam T1 Aaa
 template<typename T1, typename T2, int V>
-void comment_to_html_conversion_20(T1 aaa, T2 bbb);
+void comment_to_html_conversion_21(T1 aaa, T2 bbb);
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_20:{{.*}} FullCommentAsHTML=[<dl><dt class="tparam-name-index-0">T1</dt><dd class="tparam-descr-index-0"> Aaa</dd><dt class="tparam-name-index-1">T2</dt><dd class="tparam-descr-index-1"> Bbb </dd><dt class="tparam-name-index-2">V</dt><dd class="tparam-descr-index-2"> Ccc </dd><dt class="tparam-name-index-invalid">U</dt><dd class="tparam-descr-index-invalid"> Zzz </dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_20</Name><USR>c:@FT@&gt;3#T#T#NIcomment_to_html_conversion_20#t0.0#t0.1#</USR><Declaration>template &lt;typename T1, typename T2, int V&gt;\nvoid comment_to_html_conversion_20(T1 aaa, T2 bbb)</Declaration><TemplateParameters><Parameter><Name>T1</Name><Index>0</Index><Discussion><Para> Aaa</Para></Discussion></Parameter><Parameter><Name>T2</Name><Index>1</Index><Discussion><Para> Bbb </Para></Discussion></Parameter><Parameter><Name>V</Name><Index>2</Index><Discussion><Para> Ccc </Para></Discussion></Parameter><Parameter><Name>U</Name><Discussion><Para> Zzz </Para></Discussion></Parameter></TemplateParameters></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_21:{{.*}} FullCommentAsHTML=[<dl><dt class="tparam-name-index-0">T1</dt><dd class="tparam-descr-index-0"> Aaa</dd><dt class="tparam-name-index-1">T2</dt><dd class="tparam-descr-index-1"> Bbb </dd><dt class="tparam-name-index-2">V</dt><dd class="tparam-descr-index-2"> Ccc </dd><dt class="tparam-name-index-invalid">U</dt><dd class="tparam-descr-index-invalid"> Zzz </dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_21</Name><USR>c:@FT@&gt;3#T#T#NIcomment_to_html_conversion_21#t0.0#t0.1#</USR><Declaration>template &lt;typename T1, typename T2, int V&gt;\nvoid comment_to_html_conversion_21(T1 aaa, T2 bbb)</Declaration><TemplateParameters><Parameter><Name>T1</Name><Index>0</Index><Discussion><Para> Aaa</Para></Discussion></Parameter><Parameter><Name>T2</Name><Index>1</Index><Discussion><Para> Bbb </Para></Discussion></Parameter><Parameter><Name>V</Name><Index>2</Index><Discussion><Para> Ccc </Para></Discussion></Parameter><Parameter><Name>U</Name><Discussion><Para> Zzz </Para></Discussion></Parameter></TemplateParameters></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -356,9 +373,9 @@ void comment_to_html_conversion_20(T1 aaa, T2 bbb);
 /// \tparam T Aaa
 /// \tparam TT Bbb
 template<template<template<typename T> class TT, class C> class TTT>
-void comment_to_html_conversion_21();
+void comment_to_html_conversion_22();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_21:{{.*}} FullCommentAsHTML=[<dl><dt class="tparam-name-index-0">TTT</dt><dd class="tparam-descr-index-0"> Ddd </dd><dt class="tparam-name-index-other">C</dt><dd class="tparam-descr-index-other"> Ccc </dd><dt class="tparam-name-index-other">T</dt><dd class="tparam-descr-index-other"> Aaa </dd><dt class="tparam-name-index-other">TT</dt><dd class="tparam-descr-index-other"> Bbb</dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_21</Name><USR>c:@FT@&gt;1#t&gt;2#t&gt;1#T#Tcomment_to_html_conversion_21#</USR><Declaration>template &lt;template &lt;template &lt;typename T&gt; class TT, class C&gt; class TTT&gt;\nvoid comment_to_html_conversion_21()</Declaration><TemplateParameters><Parameter><Name>TTT</Name><Index>0</Index><Discussion><Para> Ddd </Para></Discussion></Parameter><Parameter><Name>C</Name><Discussion><Para> Ccc </Para></Discussion></Parameter><Parameter><Name>T</Name><Discussion><Para> Aaa </Para></Discussion></Parameter><Parameter><Name>TT</Name><Discussion><Para> Bbb</Para></Discussion></Parameter></TemplateParameters></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionTemplate=comment_to_html_conversion_22:{{.*}} FullCommentAsHTML=[<dl><dt class="tparam-name-index-0">TTT</dt><dd class="tparam-descr-index-0"> Ddd </dd><dt class="tparam-name-index-other">C</dt><dd class="tparam-descr-index-other"> Ccc </dd><dt class="tparam-name-index-other">T</dt><dd class="tparam-descr-index-other"> Aaa </dd><dt class="tparam-name-index-other">TT</dt><dd class="tparam-descr-index-other"> Bbb</dd></dl>] FullCommentAsXML=[<Function templateKind="template" file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_22</Name><USR>c:@FT@&gt;1#t&gt;2#t&gt;1#T#Tcomment_to_html_conversion_22#</USR><Declaration>template &lt;template &lt;template &lt;typename T&gt; class TT, class C&gt; class TTT&gt;\nvoid comment_to_html_conversion_22()</Declaration><TemplateParameters><Parameter><Name>TTT</Name><Index>0</Index><Discussion><Para> Ddd </Para></Discussion></Parameter><Parameter><Name>C</Name><Discussion><Para> Ccc </Para></Discussion></Parameter><Parameter><Name>T</Name><Discussion><Para> Aaa </Para></Discussion></Parameter><Parameter><Name>TT</Name><Discussion><Para> Bbb</Para></Discussion></Parameter></TemplateParameters></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -386,9 +403,9 @@ void comment_to_html_conversion_21();
 /// \param x2 Ddd.
 /// \param x1 Ccc.
 /// \returns Eee.
-void comment_to_html_conversion_22(int x1, int x2);
+void comment_to_html_conversion_23(int x1, int x2);
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_22:{{.*}} FullCommentAsHTML=[<p class="para-brief"> Aaa.</p><p> Bbb.</p><dl><dt class="param-name-index-0">x1</dt><dd class="param-descr-index-0"> Ccc. </dd><dt class="param-name-index-1">x2</dt><dd class="param-descr-index-1"> Ddd. </dd></dl><div class="result-discussion"><p class="para-returns"><span class="word-returns">Returns</span>  Eee.</p></div>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_22</Name><USR>c:@F@comment_to_html_conversion_22#I#I#</USR><Declaration>void comment_to_html_conversion_22(int x1, int x2)</Declaration><Abstract><Para> Aaa.</Para></Abstract><Parameters><Parameter><Name>x1</Name><Index>0</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Ccc. </Para></Discussion></Parameter><Parameter><Name>x2</Name><Index>1</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Ddd. </Para></Discussion></Parameter></Parameters><ResultDiscussion><Para> Eee.</Para></ResultDiscussion><Discussion><Para> Bbb.</Para></Discussion></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_23:{{.*}} FullCommentAsHTML=[<p class="para-brief"> Aaa.</p><p> Bbb.</p><dl><dt class="param-name-index-0">x1</dt><dd class="param-descr-index-0"> Ccc. </dd><dt class="param-name-index-1">x2</dt><dd class="param-descr-index-1"> Ddd. </dd></dl><div class="result-discussion"><p class="para-returns"><span class="word-returns">Returns</span>  Eee.</p></div>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_23</Name><USR>c:@F@comment_to_html_conversion_23#I#I#</USR><Declaration>void comment_to_html_conversion_23(int x1, int x2)</Declaration><Abstract><Para> Aaa.</Para></Abstract><Parameters><Parameter><Name>x1</Name><Index>0</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Ccc. </Para></Discussion></Parameter><Parameter><Name>x2</Name><Index>1</Index><Direction isExplicit="0">in</Direction><Discussion><Para> Ddd. </Para></Discussion></Parameter></Parameters><ResultDiscussion><Para> Eee.</Para></ResultDiscussion><Discussion><Para> Bbb.</Para></Discussion></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -413,9 +430,9 @@ void comment_to_html_conversion_22(int x1, int x2);
 // CHECK-NEXT:           (CXComment_Text Text=[ Eee.]))))]
 
 /// <br><a href="http://example.com/">Aaa</a>
-void comment_to_html_conversion_23();
+void comment_to_html_conversion_24();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_23:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <br><a href="http://example.com/">Aaa</a></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_23</Name><USR>c:@F@comment_to_html_conversion_23#</USR><Declaration>void comment_to_html_conversion_23()</Declaration><Abstract><Para> <rawHTML><![CDATA[<br>]]></rawHTML><rawHTML><![CDATA[<a href="http://example.com/">]]></rawHTML>Aaa<rawHTML>&lt;/a&gt;</rawHTML></Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_24:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <br><a href="http://example.com/">Aaa</a></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_24</Name><USR>c:@F@comment_to_html_conversion_24#</USR><Declaration>void comment_to_html_conversion_24()</Declaration><Abstract><Para> <rawHTML><![CDATA[<br>]]></rawHTML><rawHTML><![CDATA[<a href="http://example.com/">]]></rawHTML>Aaa<rawHTML>&lt;/a&gt;</rawHTML></Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -429,9 +446,9 @@ void comment_to_html_conversion_23();
 /// <a href="http://example.com/">Aaa</a>
 /// <a href='http://example.com/'>Aaa</a>
 /// \endverbatim
-void comment_to_html_conversion_24();
+void comment_to_html_conversion_25();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_24:{{.*}} FullCommentAsHTML=[<pre> &lt;a href=&quot;http:&#47;&#47;example.com&#47;&quot;&gt;Aaa&lt;&#47;a&gt;\n &lt;a href=&#39;http:&#47;&#47;example.com&#47;&#39;&gt;Aaa&lt;&#47;a&gt;</pre>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_24</Name><USR>c:@F@comment_to_html_conversion_24#</USR><Declaration>void comment_to_html_conversion_24()</Declaration><Discussion><Verbatim xml:space="preserve" kind="verbatim"> &lt;a href=&quot;http://example.com/&quot;&gt;Aaa&lt;/a&gt;\n &lt;a href=&apos;http://example.com/&apos;&gt;Aaa&lt;/a&gt;</Verbatim></Discussion></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_25:{{.*}} FullCommentAsHTML=[<pre> &lt;a href=&quot;http:&#47;&#47;example.com&#47;&quot;&gt;Aaa&lt;&#47;a&gt;\n &lt;a href=&#39;http:&#47;&#47;example.com&#47;&#39;&gt;Aaa&lt;&#47;a&gt;</pre>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_25</Name><USR>c:@F@comment_to_html_conversion_25#</USR><Declaration>void comment_to_html_conversion_25()</Declaration><Discussion><Verbatim xml:space="preserve" kind="verbatim"> &lt;a href=&quot;http://example.com/&quot;&gt;Aaa&lt;/a&gt;\n &lt;a href=&apos;http://example.com/&apos;&gt;Aaa&lt;/a&gt;</Verbatim></Discussion></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -445,9 +462,9 @@ void comment_to_html_conversion_24();
 /// \method foo
 /// \interface foo
 /// Blah blah.
-void comment_to_html_conversion_25();
+void comment_to_html_conversion_26();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_25:{{.*}} FullCommentAsHTML=[<p class="para-brief"> Blah blah.</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_25</Name><USR>c:@F@comment_to_html_conversion_25#</USR><Declaration>void comment_to_html_conversion_25()</Declaration><Abstract><Para> Blah blah.</Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_26:{{.*}} FullCommentAsHTML=[<p class="para-brief"> Blah blah.</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_26</Name><USR>c:@F@comment_to_html_conversion_26#</USR><Declaration>void comment_to_html_conversion_26()</Declaration><Abstract><Para> Blah blah.</Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph IsWhitespace
@@ -466,9 +483,9 @@ void comment_to_html_conversion_25();
 // CHECK-NEXT:         (CXComment_Text Text=[ Blah blah.])))]
 
 /// \unknown
-void comment_to_html_conversion_26();
+void comment_to_html_conversion_27();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_26:{{.*}} FullCommentAsHTML=[<p class="para-brief"> </p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_26</Name><USR>c:@F@comment_to_html_conversion_26#</USR><Declaration>void comment_to_html_conversion_26()</Declaration><Abstract><Para> </Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_27:{{.*}} FullCommentAsHTML=[<p class="para-brief"> </p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_27</Name><USR>c:@F@comment_to_html_conversion_27#</USR><Declaration>void comment_to_html_conversion_27()</Declaration><Abstract><Para> </Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -476,9 +493,9 @@ void comment_to_html_conversion_26();
 // CHECK-NEXT:         (CXComment_InlineCommand CommandName=[unknown] RenderNormal)))]
 
 /// \b Aaa
-void comment_to_html_conversion_27();
+void comment_to_html_conversion_28();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_27:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <b>Aaa</b></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_27</Name><USR>c:@F@comment_to_html_conversion_27#</USR><Declaration>void comment_to_html_conversion_27()</Declaration><Abstract><Para> <bold>Aaa</bold></Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_28:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <b>Aaa</b></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_28</Name><USR>c:@F@comment_to_html_conversion_28#</USR><Declaration>void comment_to_html_conversion_28()</Declaration><Abstract><Para> <bold>Aaa</bold></Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -486,9 +503,9 @@ void comment_to_html_conversion_27();
 // CHECK-NEXT:         (CXComment_InlineCommand CommandName=[b] RenderBold Arg[0]=Aaa)))]
 
 /// \c Aaa \p Bbb
-void comment_to_html_conversion_28();
+void comment_to_html_conversion_29();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_28:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <tt>Aaa</tt> <tt>Bbb</tt></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_28</Name><USR>c:@F@comment_to_html_conversion_28#</USR><Declaration>void comment_to_html_conversion_28()</Declaration><Abstract><Para> <monospaced>Aaa</monospaced> <monospaced>Bbb</monospaced></Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_29:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <tt>Aaa</tt> <tt>Bbb</tt></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_29</Name><USR>c:@F@comment_to_html_conversion_29#</USR><Declaration>void comment_to_html_conversion_29()</Declaration><Abstract><Para> <monospaced>Aaa</monospaced> <monospaced>Bbb</monospaced></Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -498,9 +515,9 @@ void comment_to_html_conversion_28();
 // CHECK-NEXT:         (CXComment_InlineCommand CommandName=[p] RenderMonospaced Arg[0]=Bbb)))]
 
 /// \a Aaa \e Bbb \em Ccc
-void comment_to_html_conversion_29();
+void comment_to_html_conversion_30();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_29:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <em>Aaa</em> <em>Bbb</em> <em>Ccc</em></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_29</Name><USR>c:@F@comment_to_html_conversion_29#</USR><Declaration>void comment_to_html_conversion_29()</Declaration><Abstract><Para> <emphasized>Aaa</emphasized> <emphasized>Bbb</emphasized> <emphasized>Ccc</emphasized></Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_30:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <em>Aaa</em> <em>Bbb</em> <em>Ccc</em></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_30</Name><USR>c:@F@comment_to_html_conversion_30#</USR><Declaration>void comment_to_html_conversion_30()</Declaration><Abstract><Para> <emphasized>Aaa</emphasized> <emphasized>Bbb</emphasized> <emphasized>Ccc</emphasized></Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -512,9 +529,9 @@ void comment_to_html_conversion_29();
 // CHECK-NEXT:         (CXComment_InlineCommand CommandName=[em] RenderEmphasized Arg[0]=Ccc)))]
 
 /// \a 1<2 \e 3<4 \em 5<6 \param 7<8 aaa \tparam 9<10 bbb
-void comment_to_html_conversion_30();
+void comment_to_html_conversion_31();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_30:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <em>1&lt;2</em> <em>3&lt;4</em> <em>5&lt;6</em> </p><dl><dt class="tparam-name-index-invalid">9&lt;10</dt><dd class="tparam-descr-index-invalid"> bbb</dd></dl><dl><dt class="param-name-index-invalid">7&lt;8</dt><dd class="param-descr-index-invalid"> aaa </dd></dl>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_30</Name><USR>c:@F@comment_to_html_conversion_30#</USR><Declaration>void comment_to_html_conversion_30()</Declaration><Abstract><Para> <emphasized>1&lt;2</emphasized> <emphasized>3&lt;4</emphasized> <emphasized>5&lt;6</emphasized> </Para></Abstract><TemplateParameters><Parameter><Name>9&lt;10</Name><Discussion><Para> bbb</Para></Discussion></Parameter></TemplateParameters><Parameters><Parameter><Name>7&lt;8</Name><Direction isExplicit="0">in</Direction><Discussion><Para> aaa </Para></Discussion></Parameter></Parameters></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_31:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <em>1&lt;2</em> <em>3&lt;4</em> <em>5&lt;6</em> </p><dl><dt class="tparam-name-index-invalid">9&lt;10</dt><dd class="tparam-descr-index-invalid"> bbb</dd></dl><dl><dt class="param-name-index-invalid">7&lt;8</dt><dd class="param-descr-index-invalid"> aaa </dd></dl>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_31</Name><USR>c:@F@comment_to_html_conversion_31#</USR><Declaration>void comment_to_html_conversion_31()</Declaration><Abstract><Para> <emphasized>1&lt;2</emphasized> <emphasized>3&lt;4</emphasized> <emphasized>5&lt;6</emphasized> </Para></Abstract><TemplateParameters><Parameter><Name>9&lt;10</Name><Discussion><Para> bbb</Para></Discussion></Parameter></TemplateParameters><Parameters><Parameter><Name>7&lt;8</Name><Direction isExplicit="0">in</Direction><Discussion><Para> aaa </Para></Discussion></Parameter></Parameters></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -533,9 +550,9 @@ void comment_to_html_conversion_30();
 // CHECK-NEXT:           (CXComment_Text Text=[ bbb]))))]
 
 /// \\ \@ \& \$ \# \< \> \% \" \. \::
-void comment_to_html_conversion_31();
+void comment_to_html_conversion_32();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_31:{{.*}} FullCommentAsHTML=[<p class="para-brief"> \ @ &amp; $ # &lt; &gt; % &quot; . ::</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_31</Name><USR>c:@F@comment_to_html_conversion_31#</USR><Declaration>void comment_to_html_conversion_31()</Declaration><Abstract><Para> \ @ &amp; $ # &lt; &gt; % &quot; . ::</Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_32:{{.*}} FullCommentAsHTML=[<p class="para-brief"> \ @ &amp; $ # &lt; &gt; % &quot; . ::</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_32</Name><USR>c:@F@comment_to_html_conversion_32#</USR><Declaration>void comment_to_html_conversion_32()</Declaration><Abstract><Para> \ @ &amp; $ # &lt; &gt; % &quot; . ::</Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -563,9 +580,9 @@ void comment_to_html_conversion_31();
 // CHECK-NEXT:         (CXComment_Text Text=[::])))]
 
 /// &amp; &lt; &gt; &quot; &apos; &#109;&#101;&#111;&#119; &#x6d;&#x65;&#x6F;&#X77;
-void comment_to_html_conversion_32();
+void comment_to_html_conversion_33();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_32:{{.*}} FullCommentAsHTML=[<p class="para-brief"> &amp; &lt; &gt; &quot; &#39; meow meow</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_32</Name><USR>c:@F@comment_to_html_conversion_32#</USR><Declaration>void comment_to_html_conversion_32()</Declaration><Abstract><Para> &amp; &lt; &gt; &quot; &apos; meow  meow</Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_33:{{.*}} FullCommentAsHTML=[<p class="para-brief"> &amp; &lt; &gt; &quot; &#39; meow meow</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_33</Name><USR>c:@F@comment_to_html_conversion_33#</USR><Declaration>void comment_to_html_conversion_33()</Declaration><Abstract><Para> &amp; &lt; &gt; &quot; &apos; meow  meow</Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -591,9 +608,9 @@ void comment_to_html_conversion_32();
 // CHECK-NEXT:         (CXComment_Text Text=[w])))]
 
 /// <em>0&lt;i</em>
-void comment_to_html_conversion_33();
+void comment_to_html_conversion_34();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_33:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <em>0&lt;i</em></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_33</Name><USR>c:@F@comment_to_html_conversion_33#</USR><Declaration>void comment_to_html_conversion_33()</Declaration><Abstract><Para> <rawHTML><![CDATA[<em>]]></rawHTML>0&lt;i<rawHTML>&lt;/em&gt;</rawHTML></Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_34:{{.*}} FullCommentAsHTML=[<p class="para-brief"> <em>0&lt;i</em></p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_34</Name><USR>c:@F@comment_to_html_conversion_34#</USR><Declaration>void comment_to_html_conversion_34()</Declaration><Abstract><Para> <rawHTML><![CDATA[<em>]]></rawHTML>0&lt;i<rawHTML>&lt;/em&gt;</rawHTML></Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
@@ -611,9 +628,9 @@ void comment_to_html_conversion_33();
 /// &nbsp; a non breakable space.
 /// &Delta; Greek letter Delta Δ.
 /// &Gamma; Greek letter Gamma Γ.
-void comment_to_html_conversion_34();
+void comment_to_html_conversion_35();
 
-// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_34:{{.*}} FullCommentAsHTML=[<p class="para-brief"> © the copyright symbol ™ the trade mark symbol ® the registered trade mark symbol   a non breakable space. Δ Greek letter Delta Δ. Γ Greek letter Gamma Γ.</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_34</Name><USR>c:@F@comment_to_html_conversion_34#</USR><Declaration>void comment_to_html_conversion_34()</Declaration><Abstract><Para> © the copyright symbol ™ the trade mark symbol ® the registered trade mark symbol   a non breakable space. Δ Greek letter Delta Δ. Γ Greek letter Gamma Γ.</Para></Abstract></Function>]
+// CHECK: comment-to-html-xml-conversion.cpp:[[@LINE-2]]:6: FunctionDecl=comment_to_html_conversion_35:{{.*}} FullCommentAsHTML=[<p class="para-brief"> © the copyright symbol ™ the trade mark symbol ® the registered trade mark symbol   a non breakable space. Δ Greek letter Delta Δ. Γ Greek letter Gamma Γ.</p>] FullCommentAsXML=[<Function file="{{[^"]+}}comment-to-html-xml-conversion.cpp" line="[[@LINE-2]]" column="6"><Name>comment_to_html_conversion_35</Name><USR>c:@F@comment_to_html_conversion_35#</USR><Declaration>void comment_to_html_conversion_35()</Declaration><Abstract><Para> © the copyright symbol ™ the trade mark symbol ® the registered trade mark symbol   a non breakable space. Δ Greek letter Delta Δ. Γ Greek letter Gamma Γ.</Para></Abstract></Function>]
 // CHECK-NEXT:  CommentAST=[
 // CHECK-NEXT:    (CXComment_FullComment
 // CHECK-NEXT:       (CXComment_Paragraph
diff --git a/test/Index/comment-xml-schema.c b/test/Index/comment-xml-schema.c
index b8560f7e27..0c0929f15d 100644
--- a/test/Index/comment-xml-schema.c
+++ b/test/Index/comment-xml-schema.c
@@ -45,6 +45,7 @@
 // RUN: xmllint --noout --relaxng %S/../../bindings/xml/comment-xml-schema.rng %S/Inputs/CommentXML/invalid-function-10.xml 2>&1 | FileCheck %s -check-prefix=INVALID
 // RUN: xmllint --noout --relaxng %S/../../bindings/xml/comment-xml-schema.rng %S/Inputs/CommentXML/invalid-function-11.xml 2>&1 | FileCheck %s -check-prefix=INVALID
 // RUN: xmllint --noout --relaxng %S/../../bindings/xml/comment-xml-schema.rng %S/Inputs/CommentXML/invalid-function-12.xml 2>&1 | FileCheck %s -check-prefix=INVALID
+// RUN: xmllint --noout --relaxng %S/../../bindings/xml/comment-xml-schema.rng %S/Inputs/CommentXML/invalid-function-13.xml 2>&1 | FileCheck %s -check-prefix=INVALID
 //
 // RUN: xmllint --noout --relaxng %S/../../bindings/xml/comment-xml-schema.rng %S/Inputs/CommentXML/invalid-para-kind-01.xml 2>&1 | FileCheck %s -check-prefix=INVALID
 // RUN: xmllint --noout --relaxng %S/../../bindings/xml/comment-xml-schema.rng %S/Inputs/CommentXML/invalid-para-kind-02.xml 2>&1 | FileCheck %s -check-prefix=INVALID
diff --git a/test/Sema/warn-documentation.cpp b/test/Sema/warn-documentation.cpp
index 21b8dcb0d2..7166a49909 100644
--- a/test/Sema/warn-documentation.cpp
+++ b/test/Sema/warn-documentation.cpp
@@ -305,6 +305,22 @@ typedef test_param27 test_param28;
 typedef unsigned int test_param29;
 
 
+/// \param aaa Aaa
+/// \param ... Vararg
+int test_vararg_param1(int aaa, ...);
+
+/// \param ... Vararg
+int test_vararg_param2(...);
+
+// expected-warning@+1 {{parameter '...' not found in the function declaration}} expected-note@+1 {{did you mean 'aaa'?}}
+/// \param ... Vararg
+int test_vararg_param3(int aaa);
+
+// expected-warning@+1 {{parameter '...' not found in the function declaration}}
+/// \param ... Vararg
+int test_vararg_param4();
+
+
 // expected-warning@+1 {{'\tparam' command used in a comment that is not attached to a template declaration}}
 /// \tparam T Aaa
 int test_tparam1;
diff --git a/test/Sema/warn-documentation.m b/test/Sema/warn-documentation.m
index 17dd92e6eb..5e95e2a1e8 100644
--- a/test/Sema/warn-documentation.m
+++ b/test/Sema/warn-documentation.m
@@ -215,3 +215,17 @@ int FooBar();
 /// \brief comment
 -(void)meth {}
 @end
+
+// rdar://14124644
+@interface test_vararg1
+/// @param[in] arg somthing
+/// @param[in] ... This is vararg
+- (void) VarArgMeth : (id)arg, ...;
+@end
+
+@implementation test_vararg1
+/// @param[in] arg somthing
+/// @param[in] ... This is vararg
+- (void) VarArgMeth : (id)arg, ... {}
+@end
+
diff --git a/tools/libclang/CXComment.cpp b/tools/libclang/CXComment.cpp
index 583b850a44..ad131a5221 100644
--- a/tools/libclang/CXComment.cpp
+++ b/tools/libclang/CXComment.cpp
@@ -268,7 +268,7 @@ unsigned clang_ParamCommandComment_isParamIndexValid(CXComment CXC) {
 
 unsigned clang_ParamCommandComment_getParamIndex(CXComment CXC) {
   const ParamCommandComment *PCC = getASTNodeAs<ParamCommandComment>(CXC);
-  if (!PCC || !PCC->isParamIndexValid())
+  if (!PCC || !PCC->isParamIndexValid() || PCC->isVarArgParam())
     return ParamCommandComment::InvalidParamIndex;
 
   return PCC->getParamIndex();
@@ -358,19 +358,27 @@ CXString clang_VerbatimLineComment_getText(CXComment CXC) {
 
 namespace {
 
-/// This comparison will sort parameters with valid index by index and
-/// invalid (unresolved) parameters last.
+/// This comparison will sort parameters with valid index by index, then vararg
+/// parameters, and invalid (unresolved) parameters last.
 class ParamCommandCommentCompareIndex {
 public:
   bool operator()(const ParamCommandComment *LHS,
                   const ParamCommandComment *RHS) const {
     unsigned LHSIndex = UINT_MAX;
     unsigned RHSIndex = UINT_MAX;
-    if (LHS->isParamIndexValid())
-      LHSIndex = LHS->getParamIndex();
-    if (RHS->isParamIndexValid())
-      RHSIndex = RHS->getParamIndex();
 
+    if (LHS->isParamIndexValid()) {
+      if (LHS->isVarArgParam())
+        LHSIndex = UINT_MAX - 1;
+      else
+        LHSIndex = LHS->getParamIndex();
+    }
+    if (RHS->isParamIndexValid()) {
+      if (RHS->isVarArgParam())
+        RHSIndex = UINT_MAX - 1;
+      else
+        RHSIndex = RHS->getParamIndex();
+    }
     return LHSIndex < RHSIndex;
   }
 };
@@ -671,10 +679,15 @@ void CommentASTToHTMLConverter::visitBlockCommandComment(
 void CommentASTToHTMLConverter::visitParamCommandComment(
                                   const ParamCommandComment *C) {
   if (C->isParamIndexValid()) {
-    Result << "<dt class=\"param-name-index-"
-           << C->getParamIndex()
-           << "\">";
-    appendToResultWithHTMLEscaping(C->getParamName(FC));
+    if (C->isVarArgParam()) {
+      Result << "<dt class=\"param-name-index-vararg\">";
+      appendToResultWithHTMLEscaping(C->getParamNameAsWritten());
+    } else {
+      Result << "<dt class=\"param-name-index-"
+             << C->getParamIndex()
+             << "\">";
+      appendToResultWithHTMLEscaping(C->getParamName(FC));
+    }
   } else {
     Result << "<dt class=\"param-name-index-invalid\">";
     appendToResultWithHTMLEscaping(C->getParamNameAsWritten());
@@ -682,9 +695,12 @@ void CommentASTToHTMLConverter::visitParamCommandComment(
   Result << "</dt>";
 
   if (C->isParamIndexValid()) {
-    Result << "<dd class=\"param-descr-index-"
-           << C->getParamIndex()
-           << "\">";
+    if (C->isVarArgParam())
+      Result << "<dd class=\"param-descr-index-vararg\">";
+    else
+      Result << "<dd class=\"param-descr-index-"
+             << C->getParamIndex()
+             << "\">";
   } else
     Result << "<dd class=\"param-descr-index-invalid\">";
 
@@ -1070,8 +1086,12 @@ void CommentASTToXMLConverter::visitParamCommandComment(const ParamCommandCommen
                                                        : C->getParamNameAsWritten());
   Result << "</Name>";
 
-  if (C->isParamIndexValid())
-    Result << "<Index>" << C->getParamIndex() << "</Index>";
+  if (C->isParamIndexValid()) {
+    if (C->isVarArgParam())
+      Result << "<IsVarArg />";
+    else
+      Result << "<Index>" << C->getParamIndex() << "</Index>";
+  }
 
   Result << "<Direction isExplicit=\"" << C->isDirectionExplicit() << "\">";
   switch (C->getDirection()) {