Make index translate/inobject only rely on the map.

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index a3be0a777739e071980b4b57e73138768573f38e..ab33ed5857a53c766f7e77da666243f39f0717fc 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -1354,13 +1354,13 @@ void LoadStubCompiler::GenerateLoadField(Register reg,
                                          Representation representation) {
   if (!reg.is(receiver())) __ mov(receiver(), reg);
   if (kind() == Code::LOAD_IC) {
-    LoadFieldStub stub(field.is_inobject(holder),
-                       field.translate(holder),
+    LoadFieldStub stub(field.is_inobject(holder->map()),
+                       field.translate(holder->map()),
                        representation);
     GenerateTailCall(masm(), stub.GetCode(isolate()));
   } else {
-    KeyedLoadFieldStub stub(field.is_inobject(holder),
-                            field.translate(holder),
+    KeyedLoadFieldStub stub(field.is_inobject(holder->map()),
+                            field.translate(holder->map()),
                             representation);
     GenerateTailCall(masm(), stub.GetCode(isolate()));
   }
@@ -1644,8 +1644,8 @@ Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object,
                                  name, &miss);
 
   GenerateFastPropertyLoad(
-      masm(), edi, reg, index.is_inobject(holder),
-      index.translate(holder), Representation::Tagged());
+      masm(), edi, reg, index.is_inobject(holder->map()),
+      index.translate(holder->map()), Representation::Tagged());
 
   // Check that the function really is a function.
   __ JumpIfSmi(edi, &miss);