Fix yield inside with

test/mjsunit/harmony/generators-iteration.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 220 matching lines @@
         return iter;
       },
       [1, 2, undefined],
       "foo",
       [1, 2, undefined]);
 }
 // TODO(wingo): Enable this test.  Currently accessing "this" doesn't work as
 // prior to generators, nothing needed to heap-allocate the receiver.
 // TestReceivers();
 
+TestGenerator(
+    function* g() {
+      var x = 1;
+      yield x;
+      with({x:2}) { yield x; }
+      yield x;
+    },
+    [1, 2, 1, undefined],
+    "foo",
+    [1, 2, 1, undefined]);
+
 function TestRecursion() {
   function TestNextRecursion() {
     function* g() { yield iter.next(); }
     var iter = g();
     return iter.next();
   }
   function TestSendRecursion() {
     function* g() { yield iter.send(42); }
     var iter = g();
     return iter.next();
   }
   function TestThrowRecursion() {
     function* g() { yield iter.throw(1); }
     var iter = g();
     return iter.next();
   }
   assertThrows(TestNextRecursion, Error);
   assertThrows(TestSendRecursion, Error);
   assertThrows(TestThrowRecursion, Error);
 }
 TestRecursion();