CodeStubs contain their corresponding Isolate* now. (part 2)

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 768ce5e2690bbf50515cfa2d25908b058c433227..49a40daf8f2795f1ecb23c4bb4ba45c9afdb19e0 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -1037,13 +1037,13 @@ void LoadStubCompiler::GenerateLoadField(Register reg,
                        field.is_inobject(holder),
                        field.translate(holder),
                        representation);
-    GenerateTailCall(masm(), stub.GetCode(isolate()));
+    GenerateTailCall(masm(), stub.GetCode());
   } else {
     KeyedLoadFieldStub stub(isolate(),
                             field.is_inobject(holder),
                             field.translate(holder),
                             representation);
-    GenerateTailCall(masm(), stub.GetCode(isolate()));
+    GenerateTailCall(masm(), stub.GetCode());
   }
 }