Patch to keep clang honest that it does not yet support
explicit return type on block literals.

llvm-svn: 62240
diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 230abf8..0295f70 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -1239,6 +1239,11 @@
       Actions.ActOnBlockError(CaretLoc, CurScope);
     }
   }
+  else {
+    // Saw something like: ^expr
+    Diag(Tok, diag::err_expected_expression);
+    return ExprError();
+  }
   return move(Result);
 }