Reland "[heap] Unify evacuating an object for new and old generation."

src/heap/store-buffer.cc

Index: src/heap/store-buffer.cc
diff --git a/src/heap/store-buffer.cc b/src/heap/store-buffer.cc
index bd1b63863540d32f541bc35fd77948f5b4cd9bf4..a8a1e5bbf1efe78d7b92d3e23b6822d621119fc7 100644
--- a/src/heap/store-buffer.cc
+++ b/src/heap/store-buffer.cc
@@ -496,7 +496,8 @@ void StoreBuffer::IteratePointersToNewSpace(ObjectSlotCallback slot_callback) {
               // only happen later). Note that we can never reach an
               // aborted page through the scavenger.
               DCHECK_EQ(heap_->gc_state(), Heap::MARK_COMPACT);
-              heap_->mark_compact_collector()->VisitLiveObjects(page, &visitor);
+              heap_->mark_compact_collector()->VisitLiveObjectsBody(page,
+                                                                    &visitor);
             } else {
               heap_->mark_compact_collector()
                   ->SweepOrWaitUntilSweepingCompleted(page);