Reland [heap] Avoid the use of cells to point from code to new-space objects.

src/heap/heap-inl.h

 // Copyright 2012 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_HEAP_HEAP_INL_H_
 #define V8_HEAP_HEAP_INL_H_
 
 #include <cmath>
 
 #include "src/base/platform/platform.h"
@@ skipping 408 matching lines @@
 
 void Heap::RecordWrite(Object* object, int offset, Object* o) {
   if (!InNewSpace(o) || !object->IsHeapObject() || InNewSpace(object)) {
     return;
   }
   RememberedSet<OLD_TO_NEW>::Insert(
       Page::FromAddress(reinterpret_cast<Address>(object)),
       HeapObject::cast(object)->address() + offset);
 }
 
+void Heap::RecordWriteIntoCode(Code* host, RelocInfo* rinfo, Object* value) {
+  if (InNewSpace(value)) {
+    RecordWriteIntoCodeSlow(host, rinfo, value);
+  }
+}
+
 void Heap::RecordFixedArrayElements(FixedArray* array, int offset, int length) {
   if (InNewSpace(array)) return;
   Page* page = Page::FromAddress(reinterpret_cast<Address>(array));
   for (int i = 0; i < length; i++) {
     if (!InNewSpace(array->get(offset + i))) continue;
     RememberedSet<OLD_TO_NEW>::Insert(
         page,
         reinterpret_cast<Address>(array->RawFieldOfElementAt(offset + i)));
   }
 }
@@ skipping 347 matching lines @@
 
 void VerifySmisVisitor::VisitPointers(Object** start, Object** end) {
   for (Object** current = start; current < end; current++) {
     CHECK((*current)->IsSmi());
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_INL_H_