message: Avoid unintentional copy of a const function when capturing it.
diff: @@ -184,7 +184,7 @@ class IfOp : public AsyncOpKernel {
  IfOp* const kernel_;
  OpKernelContext* const ctx_;
  const bool cond_;
  - const DoneCallback done_;
  + DoneCallback done_;
  FunctionLibraryRuntime* const lib_;
  FunctionLibraryRuntime::Options opts_;
  TensorVec args_;
  