Use FixedTypedArrayBase's body descriptor for static visiting

src/objects-body-descriptors-inl.h

Index: src/objects-body-descriptors-inl.h
diff --git a/src/objects-body-descriptors-inl.h b/src/objects-body-descriptors-inl.h
index 718b889a4ab97cbc21ec4565a12c628c81da09f1..1b59356d08a3c9b93306345eb6279882a65281e9 100644
--- a/src/objects-body-descriptors-inl.h
+++ b/src/objects-body-descriptors-inl.h
@@ -102,7 +102,9 @@ void BodyDescriptorBase::IteratePointer(HeapObject* obj, int 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));
 }