Remove several JSFunction delegator functions.

src/heap/objects-visiting-inl.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_OBJECTS_VISITING_INL_H_
 #define V8_OBJECTS_VISITING_INL_H_
 
 #include "src/heap/array-buffer-tracker.h"
 #include "src/heap/objects-visiting.h"
 #include "src/ic/ic-state.h"
@@ skipping 650 matching lines @@
   FixedArray* const literals = data->LiteralArray();
   int const inlined_count = data->InlinedFunctionCount()->value();
   for (int i = 0; i < inlined_count; ++i) {
     StaticVisitor::MarkObject(
         heap, SharedFunctionInfo::cast(literals->get(i))->code());
   }
 }
 
 
 inline static bool HasValidNonBuiltinContext(JSFunction* function) {
-  return function->context()->IsContext() && !function->IsBuiltin();
+  return function->context()->IsContext() && !function->shared()->IsBuiltin();
 }
 
 
 inline static bool HasSourceCode(Heap* heap, SharedFunctionInfo* info) {
   Object* undefined = heap->undefined_value();
   return (info->script() != undefined) &&
          (reinterpret_cast<Script*>(info->script())->source() != undefined);
 }
 
 
@@ skipping 216 matching lines @@
 
   RelocIterator it(this, mode_mask);
   for (; !it.done(); it.next()) {
     it.rinfo()->template Visit<StaticVisitor>(heap);
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_VISITING_INL_H_