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

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 852e0788604f45c851adfa551c0d3ae0e58361ba..d095b3ae9b6f5b83596dd6b0f364b47e21c8f80a 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -2966,8 +2966,15 @@
 
 void MacroAssembler::MoveHeapObject(Register result,
                                     Handle<Object> object) {
+  AllowDeferredHandleDereference using_raw_address;
   DCHECK(object->IsHeapObject());
-  Move(result, object, RelocInfo::EMBEDDED_OBJECT);
+  if (isolate()->heap()->InNewSpace(*object)) {
+    Handle<Cell> cell = isolate()->factory()->NewCell(object);
+    Move(result, cell, RelocInfo::CELL);
+    movp(result, Operand(result, 0));
+  } else {
+    Move(result, object, RelocInfo::EMBEDDED_OBJECT);
+  }
 }