Unbreak MIPS build.

TBR=vegorov@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10868102

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12382 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/lithium-mips.cc

@@ -880,7 +880,9 @@ LEnvironment* LChunkBuilder::CreateEnvironment(
     } else {
       op = UseAny(value);
     }
-    result->AddValue(op, value->representation());
+    result->AddValue(op,
+                     value->representation(),
+                     value->CheckFlag(HInstruction::kUint32));
   }
 
   if (hydrogen_env->frame_type() == JS_FUNCTION) {