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

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 5b41e46d0ff0f7335ceefa6665ad7b7d7a64293a..fac56495a0048ab66f4678fad43bce600df9050f 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -2464,8 +2464,9 @@
   return data_start() + kFirstIndex + index;
 }
 
-void ArrayList::Set(int index, Object* obj, WriteBarrierMode mode) {
-  FixedArray::cast(this)->set(kFirstIndex + index, obj, mode);
+
+void ArrayList::Set(int index, Object* obj) {
+  FixedArray::cast(this)->set(kFirstIndex + index, obj);
 }