Implement support for C++0x alias templates.

llvm-svn: 130953
diff --git a/clang/lib/AST/DumpXML.cpp b/clang/lib/AST/DumpXML.cpp
index 7d593bc..8bb39ba 100644
--- a/clang/lib/AST/DumpXML.cpp
+++ b/clang/lib/AST/DumpXML.cpp
@@ -619,7 +619,8 @@
   // TemplateDecl
   void visitTemplateDeclChildren(TemplateDecl *D) {
     visitTemplateParameters(D->getTemplateParameters());
-    dispatch(D->getTemplatedDecl());
+    if (D->getTemplatedDecl())
+      dispatch(D->getTemplatedDecl());
   }
 
   // FunctionTemplateDecl