Add an AST matcher for checking whether a function is defaulted.

Patch by Jonathan Coe.

llvm-svn: 258072
diff --git a/clang/docs/LibASTMatchersReference.html b/clang/docs/LibASTMatchersReference.html
index d452c78..7f21262 100644
--- a/clang/docs/LibASTMatchersReference.html
+++ b/clang/docs/LibASTMatchersReference.html
@@ -2184,6 +2184,17 @@
 </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('isDefaulted0')"><a name="isDefaulted0Anchor">isDefaulted</a></td><td></td></tr>
+<tr><td colspan="4" class="doc" id="isDefaulted0"><pre>Matches defaulted function declarations.
+
+Given:
+  class A { ~A(); };
+  class B { ~B() = default; };
+functionDecl(isDefaulted())
+  matches the declaration of ~B, but not ~A.
+</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.