Make JSFunction::BodyDescriptor the only single place that knows how to iterate JSFunction's body.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index fef74442c3da4a6b93cd0028868e6a4a51c4bdcf..3735526f099eb5bbe301dd9de5f0dbafc3b205a5 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -10960,15 +10960,6 @@ bool Map::EquivalentToForNormalization(Map* other,
 }
 
 
-void JSFunction::JSFunctionIterateBody(int object_size, ObjectVisitor* v) {
-  // Iterate over all fields in the body but take care in dealing with
-  // the code entry.
-  IteratePointers(v, kPropertiesOffset, kCodeEntryOffset);
-  v->VisitCodeEntry(this->address() + kCodeEntryOffset);
-  IteratePointers(v, kCodeEntryOffset + kPointerSize, object_size);
-}
-
-
 bool JSFunction::Inlines(SharedFunctionInfo* candidate) {
   DisallowHeapAllocation no_gc;
   if (shared() == candidate) return true;