Remove GenerateBooleanCheck() since we have a boolean map now.

src/stub-cache.h

 // Copyright 2012 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.
 
 #ifndef V8_STUB_CACHE_H_
 #define V8_STUB_CACHE_H_
 
 #include "allocation.h"
 #include "arguments.h"
 #include "code-stubs.h"
@@ skipping 358 matching lines @@
   Register CheckPrototypes(Handle<HeapType> type,
                            Register object_reg,
                            Handle<JSObject> holder,
                            Register holder_reg,
                            Register scratch1,
                            Register scratch2,
                            Handle<Name> name,
                            Label* miss,
                            PrototypeCheckType check = CHECK_ALL_MAPS);
 
-  void GenerateBooleanCheck(Register object, Label* miss);
-
   static void GenerateFastApiCall(MacroAssembler* masm,
                                   const CallOptimization& optimization,
                                   Handle<Map> receiver_map,
                                   Register receiver,
                                   Register scratch,
                                   bool is_store,
                                   int argc,
                                   Register* values);
 
  protected:
@@ skipping 437 matching lines @@
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_