message: Register FakeResourceUpdateOp for the right op
  Before this CL the PartiallyDeclusterPassTest.DontDuplicateResourceVarOps test
  was buggy, in that it wasn't testing what it was supposed to test.
diff: @@ -60,9 +60,9 @@ class FakeBinaryOp : public OpKernel {
  void Compute(OpKernelContext* ctx) override { CHECK(false); }
  };
  -class FakeResourceVarUpdateOp : public OpKernel {
  +class FakeResourceUpdateOp : public OpKernel {
  public:
  - explicit FakeResourceVarUpdateOp(OpKernelConstruction* context)
  + explicit FakeResourceUpdateOp(OpKernelConstruction* context)
  : OpKernel(context) {}
  void Compute(OpKernelContext* ctx) override { CHECK(false); }
  @@ -74,10 +74,9 @@ REGISTER_KERNEL_BUILDER(Name("FakeBinary")
  .HostMemory("host_out"),
  FakeBinaryOp);
  -REGISTER_KERNEL_BUILDER(Name("FakeResourceVarUpdate")
  - .Device(DEVICE_CPU)
  - .HostMemory("something_else"),
  - FakeResourceVarUpdateOp);
  +REGISTER_KERNEL_BUILDER(
  + Name("FakeResourceUpdate").Device(DEVICE_CPU).HostMemory("something_else"),
  + FakeResourceUpdateOp);
  Status PartiallyDecluster(std::unique_ptr<Graph>* graph) {
  FixupSourceAndSinkEdges(graph->get());
  