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

src/arm/macro-assembler-arm.cc

Index: src/arm/macro-assembler-arm.cc
diff --git a/src/arm/macro-assembler-arm.cc b/src/arm/macro-assembler-arm.cc
index 4feadb7350af05247cb001654c7e71590e8fc63b..8eb93a6b3332b3a2aa853146759b6e1d967d6daf 100644
--- a/src/arm/macro-assembler-arm.cc
+++ b/src/arm/macro-assembler-arm.cc
@@ -240,19 +240,7 @@ void MacroAssembler::Push(Handle<Object> handle) {
 
 
 void MacroAssembler::Move(Register dst, Handle<Object> value) {
-  AllowDeferredHandleDereference smi_check;
-  if (value->IsSmi()) {
-    mov(dst, Operand(value));
-  } else {
-    DCHECK(value->IsHeapObject());
-    if (isolate()->heap()->InNewSpace(*value)) {
-      Handle<Cell> cell = isolate()->factory()->NewCell(value);
-      mov(dst, Operand(cell));
-      ldr(dst, FieldMemOperand(dst, Cell::kValueOffset));
-    } else {
-      mov(dst, Operand(value));
-    }
-  }
+  mov(dst, Operand(value));
 }