Remove offset() and is_in_object() from hydrogen and lithium LoadNamedField and StoreNamedField and…

src/mips/lithium-mips.cc

Index: src/mips/lithium-mips.cc
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index 3f96c39e24de66f9a5d6e83637800038637c5ca4..5ceca4970098dc92cf7e761e452e3e39882e618e 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -2205,13 +2205,14 @@ LInstruction* LChunkBuilder::DoTrapAllocationMemento(
 
 
 LInstruction* LChunkBuilder::DoStoreNamedField(HStoreNamedField* instr) {
+  bool is_in_object = instr->access().IsInobject();
   bool needs_write_barrier = instr->NeedsWriteBarrier();
   bool needs_write_barrier_for_map = !instr->transition().is_null() &&
       instr->NeedsWriteBarrierForMap();
 
   LOperand* obj;
   if (needs_write_barrier) {
-    obj = instr->is_in_object()
+    obj = is_in_object
         ? UseRegister(instr->object())
         : UseTempRegister(instr->object());
   } else {