Don't call into objc front-end when not parsing objc code.  This avoids
crashes because objc types aren't set up right.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50884 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseExpr.cpp b/lib/Parse/ParseExpr.cpp
index dff7c14..523f647 100644
--- a/lib/Parse/ParseExpr.cpp
+++ b/lib/Parse/ParseExpr.cpp
@@ -586,7 +586,9 @@
   }
   case tok::l_square:
     // These can be followed by postfix-expr pieces.
-    return ParsePostfixExpressionSuffix(ParseObjCMessageExpression());
+    if (getLang().ObjC1)
+      return ParsePostfixExpressionSuffix(ParseObjCMessageExpression());
+    // FALL THROUGH.
   default:
     Diag(Tok, diag::err_expected_expression);
     return ExprResult(true);