Fix a crash with constructs like x<false>() in C++. No testcase because

it doesn't actually work yet; we just error out a bit more gracefully.

llvm-svn: 74381

clang/lib/Parse/Parser.cpp

@@ -963,7 +963,7 @@ bool Parser::TryAnnotateTypeOrScopeToken() {
   }
 
   if (SS.isEmpty())
-    return false;
+    return Tok.isNot(tok::identifier);
   
   // A C++ scope specifier that isn't followed by a typename.
   // Push the current token back into the token stream (or revert it if it is