[runtime] No need to carry around the creation context for JSBoundFunctions.

src/objects-debug.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 "src/objects.h"
 
 #include "src/bootstrapper.h"
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/macro-assembler.h"
@@ skipping 535 matching lines @@
   CHECK(this->length() >= SlicedString::kMinLength);
 }
 
 
 void JSBoundFunction::JSBoundFunctionVerify() {
   CHECK(IsJSBoundFunction());
   JSObjectVerify();
   VerifyObjectField(kBoundThisOffset);
   VerifyObjectField(kBoundTargetFunctionOffset);
   VerifyObjectField(kBoundArgumentsOffset);
-  VerifyObjectField(kCreationContextOffset);
   CHECK(bound_target_function()->IsCallable());
-  CHECK(creation_context()->IsNativeContext());
   CHECK(IsCallable());
   CHECK_EQ(IsConstructor(), bound_target_function()->IsConstructor());
 }
 
 
 void JSFunction::JSFunctionVerify() {
   CHECK(IsJSFunction());
   VerifyObjectField(kPrototypeOrInitialMapOffset);
   VerifyObjectField(kNextFunctionLinkOffset);
   CHECK(code()->IsCode());
@@ skipping 764 matching lines @@
 
   // Both are done at the same time.
   CHECK_EQ(new_it.done(), old_it.done());
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8