[heap] Move typed slot filtering logic into sweeper.

src/heap/remembered-set.cc

Index: src/heap/remembered-set.cc
diff --git a/src/heap/remembered-set.cc b/src/heap/remembered-set.cc
deleted file mode 100644
index 786e1950765cc9d32fa25249de7cf0b6df705905..0000000000000000000000000000000000000000
--- a/src/heap/remembered-set.cc
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright 2016 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.
-
-#include "src/heap/remembered-set.h"
-#include "src/heap/heap-inl.h"
-#include "src/heap/heap.h"
-#include "src/heap/mark-compact.h"
-#include "src/heap/slot-set.h"
-#include "src/heap/spaces.h"
-#include "src/heap/store-buffer.h"
-#include "src/macro-assembler.h"
-
-namespace v8 {
-namespace internal {
-
-template <PointerDirection direction>
-void RememberedSet<direction>::ClearInvalidTypedSlots(Heap* heap,
-                                                      MemoryChunk* chunk) {
-  STATIC_ASSERT(direction == OLD_TO_NEW);
-  DCHECK(chunk->owner()->identity() == CODE_SPACE);
-  TypedSlotSet* slots = GetTypedSlotSet(chunk);
-  if (slots != nullptr) {
-    slots->Iterate(
-        [heap, chunk](SlotType type, Address host_addr, Address addr) {
-          if (Marking::IsBlack(ObjectMarking::MarkBitFrom(host_addr))) {
-            return KEEP_SLOT;
-          } else {
-            return REMOVE_SLOT;
-          }
-        },
-        TypedSlotSet::KEEP_EMPTY_CHUNKS);
-  }
-}
-
-template <PointerDirection direction>
-bool RememberedSet<direction>::IsValidSlot(Heap* heap, MemoryChunk* chunk,
-                                           Object** slot) {
-  STATIC_ASSERT(direction == OLD_TO_NEW);
-  // If the target object is not black, the source slot must be part
-  // of a non-black (dead) object.
-  return heap->mark_compact_collector()->IsSlotInBlackObject(
-      chunk, reinterpret_cast<Address>(slot));
-}
-
-template void RememberedSet<OLD_TO_NEW>::ClearInvalidTypedSlots(
-    Heap* heap, MemoryChunk* chunk);
-
-}  // namespace internal
-}  // namespace v8