message: [XLA] Fix XLA/tfcompile compile error on OSX
  This fixes issue
  kernel_support_library.cc:99:5: error: no matching function
  for call to 'transform' std::transform(function->arg_begin(),..
  TEST=build tfcompile on OSX (also requires PR#14893)
diff: @@ -111,8 +111,15 @@ void KernelSupportLibrary::EmitAndCallOutlinedKernel(
  ir_builder->SetInsertPoint(return_inst);
  std::vector<llvm::Value*> arg_values;
  - std::transform(function->arg_begin(), function->arg_end(),
  - std::back_inserter(arg_values), std::addressof<llvm::Value>);
  + /*
  + * clang on OSX doesn't like std::transform or range for loop here.
  + * See https://github.com/tensorflow/tensorflow/issues/15196
  + */
  + for (llvm::Function::arg_iterator arg = function->arg_begin(),
  + arg_e = function->arg_end();
  + arg != arg_e; ++arg) {
  + arg_values.push_back(arg);
  + }
  if (null_arg_idx != -1) {
  arg_values.insert(arg_values.begin() + null_arg_idx, nullptr);
  }
  