Merge upstream Clang rev 205331 debuginfo crash fix:

Debug info: fix a crash when emitting IndirectFieldDecls, which were
    previously not handled at all.
    rdar://problem/16348575

MFC after:	1 week
Sponsored by:	DARPA, AFRL

contrib/llvm/tools/clang/lib/CodeGen/CGDebugInfo.cpp

@@ -1241,7 +1241,7 @@ CollectTemplateParams(const TemplateParameterList *TPList,
         V = CGM.GetAddrOfFunction(FD);
       // Member data pointers have special handling too to compute the fixed
       // offset within the object.
-      if (isa<FieldDecl>(D)) {
+      if (isa<FieldDecl>(D) || isa<IndirectFieldDecl>(D)) {
         // These five lines (& possibly the above member function pointer
         // handling) might be able to be refactored to use similar code in
         // CodeGenModule::getMemberPointerConstant