Function operator==

tensorflow/core/framework/tensor_test.cc:39–43

To make TestCopies do the right thing.

// To make TestCopies do the right thing.
bool operator==(const ResourceHandle& a, const ResourceHandle& b) {
  return a.device() == b.device() && a.container() == b.container() &&
         a.name() == b.name() && a.hash_code() == b.hash_code() &&
         a.maybe_type_name() == b.maybe_type_name();
}

bool operator==(const Variant& a, const Variant& b) {
  if (a.is_empty()) {