1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 8d4705a7bf..be929ae067 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -364,6 +364,11 @@ ParseInitDeclaratorListAfterFirstDeclarator(Declarator &D) {
   
   if (Tok.is(tok::semi)) {
     ConsumeToken();
+    // for(is key; in keys) is error.
+    if (D.getContext()  == Declarator::ForContext && isTokIdentifier_in()) {
+      Diag(Tok, diag::err_parse_error);
+      return 0;
+    }
     return Actions.FinalizeDeclaratorGroup(CurScope, LastDeclInGroup);
   }
   // If this is an ObjC2 for-each loop, this is a successful declarator