X87: Always use the LoadStubCompiler for Load handlers, also for keyedload handlers

port r22551.

original commit message:
  Always use the LoadStubCompiler for Load handlers, also for keyedload handlers

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/412903003

Patch from Chunyang Dai <chunyang.dai@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22587 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/x87/stub-cache-x87.cc

@@ -967,13 +967,8 @@ void LoadStubCompiler::GenerateLoadField(Register reg,
                                          FieldIndex field,
                                          Representation representation) {
   if (!reg.is(receiver())) __ mov(receiver(), reg);
-  if (kind() == Code::LOAD_IC) {
-    LoadFieldStub stub(isolate(), field);
-    GenerateTailCall(masm(), stub.GetCode());
-  } else {
-    KeyedLoadFieldStub stub(isolate(), field);
-    GenerateTailCall(masm(), stub.GetCode());
-  }
+  LoadFieldStub stub(isolate(), field);
+  GenerateTailCall(masm(), stub.GetCode());
 }