Add missing direct-init / parameter-declaration-clause disambiguation when
parsing a trailing-return-type of a (function pointer) variable declaration.

llvm-svn: 324151
diff --git a/clang/lib/Parse/ParseTentative.cpp b/clang/lib/Parse/ParseTentative.cpp
index 5c206f4..10c084b 100644
--- a/clang/lib/Parse/ParseTentative.cpp
+++ b/clang/lib/Parse/ParseTentative.cpp
@@ -873,7 +873,8 @@
 ///           template-id                                                 [TODO]
 ///
 Parser::TPResult Parser::TryParseDeclarator(bool mayBeAbstract,
-                                            bool mayHaveIdentifier) {
+                                            bool mayHaveIdentifier,
+                                            bool mayHaveDirectInit) {
   // declarator:
   //   direct-declarator
   //   ptr-operator declarator
@@ -930,6 +931,9 @@
     return TPResult::False;
   }
 
+  if (mayHaveDirectInit)
+    return TPResult::Ambiguous;
+
   while (1) {
     TPResult TPR(TPResult::Ambiguous);