Add isDeleted() matcher for FunctionDecl nodes.

[sbenza]

Fix typo in comment.

[sbenza]

Remove extra whitespace

[sbenza]

Closed by commit rL215714 (authored by @sbenza).

docs/LibASTMatchersReference.html

 <tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>&gt;</td><td class="name" onclick="toggle('qualType0')"><a name="qualType0Anchor">qualType</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="qualType0"><pre>Matches QualTypes in the clang AST.
 </pre></td></tr>
 
 
 <tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>&gt;</td><td class="name" onclick="toggle('CUDAKernelCallExpr0')"><a name="CUDAKernelCallExpr0Anchor">CUDAKernelCallExpr</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1CUDAKernelCallExpr.html">CUDAKernelCallExpr</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="CUDAKernelCallExpr0"><pre>Matches CUDA kernel call expression.
 
-Example matches kernel&lt;&lt;&lt;i,j&gt;&gt;&gt;()
+Example matches,
   kernel&lt;&lt;&lt;i,j&gt;&gt;&gt;();
 </pre></td></tr>
 
 
 <tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>&gt;</td><td class="name" onclick="toggle('arraySubscriptExpr0')"><a name="arraySubscriptExpr0Anchor">arraySubscriptExpr</a></td><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1ArraySubscriptExpr.html">ArraySubscriptExpr</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="arraySubscriptExpr0"><pre>Matches array subscript expressions.
 
 Given
Example matches A, va, fa
   extern int vb;  Doesn't match, as it doesn't define the variable.
   void fa() {}
   void fb();  Doesn't match, as it has no body.
 
 Usable as: Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1TagDecl.html">TagDecl</a>&gt;, Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>&gt;, Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>&gt;
 </pre></td></tr>
 
 
+<tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>&gt;</td><td class="name" onclick="toggle('isDeleted0')"><a name="isDeleted0Anchor">isDeleted</a></td><td></td></tr>
+<tr><td colspan="4" class="doc" id="isDeleted0"><pre>Matches deleted function declarations.
+
+Given:
+  void Func();
+  void DeletedFunc() = delete;
+functionDecl(isDeleted())
+  matches the declaration of DeletedFunc, but not Func.
+</pre></td></tr>
+
+
 <tr><td>Matcher&lt<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>&gt;</td><td class="name" onclick="toggle('isExplicitTemplateSpecialization0')"><a name="isExplicitTemplateSpecialization0Anchor">isExplicitTemplateSpecialization</a></td><td></td></tr>
 <tr><td colspan="4" class="doc" id="isExplicitTemplateSpecialization0"><pre>Matches explicit template specializations of function, class, or
 static member variable template instantiations.
 
 Given
   template&lt;typename T&gt; void A(T t) { }
   template&lt;&gt; void A(int N) { }
 functionDecl(isExplicitTemplateSpecialization())

include/clang/ASTMatchers/ASTMatchers.h

 ///   void h() {}
 /// \endcode
 /// functionDecl(isExternC())
 ///   matches the declaration of f and g, but not the declaration h
 AST_MATCHER(FunctionDecl, isExternC) {
   return Node.isExternC();
 }
 
+/// \bried Matches deleted function declarations.
+///
+/// Given:
+/// \code
+///   void Func();
+///   void DeletedFunc() = delete;
+/// \endcode
+/// functionDecl(isDeleted())
+///   matches the declaration of DeletedFunc, but not Func.
+AST_MATCHER(FunctionDecl, isDeleted) {
+  return Node.isDeleted();
+}
+
 /// \brief Matches the condition expression of an if statement, for loop,
 /// or conditional operator.
 ///
 /// Example matches true (matcher = hasCondition(boolLiteral(equals(true))))
 /// \code
 ///   if (true) {}
 /// \endcode
 AST_POLYMORPHIC_MATCHER_P(

lib/ASTMatchers/Dynamic/Registry.cpp

RegistryMaps::RegistryMaps() {
   REGISTER_MATCHER(incompleteArrayType);
   REGISTER_MATCHER(initListExpr);
   REGISTER_MATCHER(innerType);
   REGISTER_MATCHER(integerLiteral);
   REGISTER_MATCHER(isArrow);
   REGISTER_MATCHER(isConst);
   REGISTER_MATCHER(isConstQualified);
   REGISTER_MATCHER(isDefinition);
+  REGISTER_MATCHER(isDeleted);
   REGISTER_MATCHER(isExplicitTemplateSpecialization);
   REGISTER_MATCHER(isExpr);
   REGISTER_MATCHER(isExternC);
   REGISTER_MATCHER(isImplicit);
   REGISTER_MATCHER(isInteger);
   REGISTER_MATCHER(isListInitialization);
   REGISTER_MATCHER(isOverride);
   REGISTER_MATCHER(isPrivate);

unittests/ASTMatchers/ASTMatchersTest.cpp

 
 TEST(IsExternC, MatchesExternCFunctionDeclarations) {
   EXPECT_TRUE(matches("extern \"C\" void f() {}", functionDecl(isExternC())));
   EXPECT_TRUE(matches("extern \"C\" { void f() {} }",
               functionDecl(isExternC())));
   EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC())));
 }
 
+TEST(IsDeleted, MatchesDeletedFunctionDeclarations) {
+  EXPECT_TRUE(
+      notMatches("void Func();", functionDecl(hasName("Func"), isDeleted())));
+  EXPECT_TRUE(matches("void Func() = delete;",
+                      functionDecl(hasName("Func"), isDeleted())));
+}
+
+
 TEST(HasAnyParameter, DoesntMatchIfInnerMatcherDoesntMatch) {
   EXPECT_TRUE(notMatches("class Y {}; class X { void x(int) {} };",
       methodDecl(hasAnyParameter(hasType(recordDecl(hasName("X")))))));
 }
 
 TEST(HasAnyParameter, DoesNotMatchThisPointer) {
   EXPECT_TRUE(notMatches("class Y {}; class X { void x() {} };",
       methodDecl(hasAnyParameter(hasType(pointsTo(