Use FixedTypedArrayBase's body descriptor for static visiting

src/objects-body-descriptors-inl.h

 // Copyright 2015 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_BODY_DESCRIPTORS_INL_H_
 #define V8_OBJECTS_BODY_DESCRIPTORS_INL_H_
 
 #include "src/objects-body-descriptors.h"
 
 namespace v8 {
@@ skipping 84 matching lines @@
 template <typename ObjectVisitor>
 void BodyDescriptorBase::IteratePointer(HeapObject* obj, int offset,
                                         ObjectVisitor* v) {
   v->VisitPointer(HeapObject::RawField(obj, offset));
 }
 
 
 template <typename StaticVisitor>
 void BodyDescriptorBase::IteratePointer(Heap* heap, HeapObject* obj,
                                         int offset) {
-  StaticVisitor::VisitPointer(heap, obj, HeapObject::RawField(obj, offset));
+  StaticVisitor::VisitPointers(

[Igor Sheludko, 2015/12/01 13:53:00]

Why did you change this?

[jochen (gone - plz use gerrit), 2015/12/01 14:00:57]

because the StaticScavengingVisitor doesn't implement VisitPointer - so I could
either implement it there, or map both IteratePointer and IteratePointers to the
same method

[Igor Sheludko, 2015/12/01 14:09:09]

I think it is better to modify signature of the
StaticScavengeVisitor::VisitPointer() instead in order to be uniform with all
other static visitors.

+      heap, obj, HeapObject::RawField(obj, offset),
+      HeapObject::RawField(obj, offset + kPointerSize));
 }
 
 
 // Iterates the function object according to the visiting policy.
 template <JSFunction::BodyVisitingPolicy body_visiting_policy>
 class JSFunction::BodyDescriptorImpl final : public BodyDescriptorBase {
  public:
   STATIC_ASSERT(kNonWeakFieldsEndOffset == kCodeEntryOffset);
   STATIC_ASSERT(kCodeEntryOffset + kPointerSize == kNextFunctionLinkOffset);
   STATIC_ASSERT(kNextFunctionLinkOffset + kPointerSize == kSize);
@@ skipping 439 matching lines @@
 
 template <typename ObjectVisitor>
 void HeapObject::IterateBodyFast(InstanceType type, int object_size,
                                  ObjectVisitor* v) {
   BodyDescriptorApply<CallIterateBody, void>(type, this, object_size, v);
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_BODY_DESCRIPTORS_INL_H_