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

src/x64/stub-cache-x64.cc

 // 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.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "arguments.h"
 #include "ic-inl.h"
@@ skipping 1057 matching lines @@
                              this->name(), interceptor_holder);
     __ PushReturnAddressFrom(scratch2());
 
     ExternalReference ref = ExternalReference(
         IC_Utility(IC::kLoadPropertyWithInterceptorForLoad), isolate());
     __ TailCallExternalReference(ref, StubCache::kInterceptorArgsLength, 1);
   }
 }
 
 
-void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
-  Label success;
-  // Check that the object is a boolean.
-  __ Cmp(object, factory()->true_value());
-  __ j(equal, &success);
-  __ Cmp(object, factory()->false_value());
-  __ j(not_equal, miss);
-  __ bind(&success);
-}
-
-
 Handle<Code> StoreStubCompiler::CompileStoreCallback(
     Handle<JSObject> object,
     Handle<JSObject> holder,
     Handle<Name> name,
     Handle<ExecutableAccessorInfo> callback) {
   Register holder_reg = HandlerFrontend(
       IC::CurrentTypeOf(object, isolate()), receiver(), holder, name);
 
   __ PopReturnAddressTo(scratch1());
   __ Push(receiver());
@@ skipping 354 matching lines @@
   // -----------------------------------
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64