[strong] Disallow implicit conversions for comparison

src/code-factory.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/bootstrapper.h"
 #include "src/code-factory.h"
 #include "src/ic/ic.h"
 
@@ skipping 87 matching lines @@
 Callable CodeFactory::KeyedStoreICInOptimizedCode(
     Isolate* isolate, LanguageMode language_mode,
     InlineCacheState initialization_state) {
   return Callable(KeyedStoreIC::initialize_stub(isolate, language_mode,
                                                 initialization_state),
                   StoreDescriptor(isolate));
 }
 
 
 // static
-Callable CodeFactory::CompareIC(Isolate* isolate, Token::Value op) {
-  Handle<Code> code = CompareIC::GetUninitialized(isolate, op);
+Callable CodeFactory::CompareIC(Isolate* isolate, Token::Value op,
+                                LanguageMode language_mode) {
+  Handle<Code> code =
+      CompareIC::GetUninitialized(isolate, op, is_strong(language_mode));
   return Callable(code, CompareDescriptor(isolate));
 }
 
 
 // static
 Callable CodeFactory::BinaryOpIC(Isolate* isolate, Token::Value op,
                                  LanguageMode language_mode) {
   BinaryOpICStub stub(isolate, op, language_mode);
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
 }
@@ skipping 63 matching lines @@
 
 // static
 Callable CodeFactory::CallFunction(Isolate* isolate, int argc,
                                    CallFunctionFlags flags) {
   CallFunctionStub stub(isolate, argc, flags);
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
 }
 
 }  // namespace internal
 }  // namespace v8