Fix decltype crash-on-invalid, if we don't find a matching ')' for an ill-formed

decltype expression.

llvm-svn: 151515

clang/lib/Parse/ParseDeclCXX.cpp

@@ -674,9 +674,9 @@ SourceLocation Parser::ParseDecltypeSpecifier(DeclSpec &DS) {
                                                  0, /*IsDecltype=*/true);
     Result = ParseExpression();
     if (Result.isInvalid()) {
-      SkipUntil(tok::r_paren, true, true);
+      SkipUntil(tok::r_paren);
       DS.SetTypeSpecError();
-      return Tok.is(tok::eof) ? Tok.getLocation() : ConsumeParen();
+      return StartLoc;
     }
 
     // Match the ')'

clang/test/Parser/bracket-crash.cpp

@@ -1,6 +1,6 @@
-// RUN: not %clang_cc1 -fsyntax-only %s
+// RUN: not %clang_cc1 -fsyntax-only -std=c++11 %s
 // PR7481
+decltype(;
 struct{
   a
 }
-