fix enum-compare-switch warning (#1833)

exporters/otlp/src/otlp_grpc_utils.cc

@@ -16,39 +16,39 @@ const char *grpc_status_code_to_string(::grpc::StatusCode status_code)
 {
  switch (status_code)
  {
- case GRPC_STATUS_OK:
+ case ::grpc::StatusCode::OK:
  return "OK";
- case GRPC_STATUS_CANCELLED:
+ case ::grpc::StatusCode::CANCELLED:
  return "CANCELLED";
- case GRPC_STATUS_UNKNOWN:
+ case ::grpc::StatusCode::UNKNOWN:
  return "UNKNOWN";
- case GRPC_STATUS_INVALID_ARGUMENT:
+ case ::grpc::StatusCode::INVALID_ARGUMENT:
  return "INVALID_ARGUMENT";
- case GRPC_STATUS_DEADLINE_EXCEEDED:
+ case ::grpc::StatusCode::DEADLINE_EXCEEDED:
  return "DEADLINE_EXCEEDED";
- case GRPC_STATUS_NOT_FOUND:
+ case ::grpc::StatusCode::NOT_FOUND:
  return "NOT_FOUND";
- case GRPC_STATUS_ALREADY_EXISTS:
+ case ::grpc::StatusCode::ALREADY_EXISTS:
  return "ALREADY_EXISTS";
- case GRPC_STATUS_PERMISSION_DENIED:
+ case ::grpc::StatusCode::PERMISSION_DENIED:
  return "PERMISSION_DENIED";
- case GRPC_STATUS_UNAUTHENTICATED:
+ case ::grpc::StatusCode::UNAUTHENTICATED:
  return "UNAUTHENTICATED";
- case GRPC_STATUS_RESOURCE_EXHAUSTED:
+ case ::grpc::StatusCode::RESOURCE_EXHAUSTED:
  return "RESOURCE_EXHAUSTED";
- case GRPC_STATUS_FAILED_PRECONDITION:
+ case ::grpc::StatusCode::FAILED_PRECONDITION:
  return "FAILED_PRECONDITION";
- case GRPC_STATUS_ABORTED:
+ case ::grpc::StatusCode::ABORTED:
  return "ABORTED";
- case GRPC_STATUS_OUT_OF_RANGE:
+ case ::grpc::StatusCode::OUT_OF_RANGE:
  return "OUT_OF_RANGE";
- case GRPC_STATUS_UNIMPLEMENTED:
+ case ::grpc::StatusCode::UNIMPLEMENTED:
  return "UNIMPLEMENTED";
- case GRPC_STATUS_INTERNAL:
+ case ::grpc::StatusCode::INTERNAL:
  return "INTERNAL";
- case GRPC_STATUS_UNAVAILABLE:
+ case ::grpc::StatusCode::UNAVAILABLE:
  return "UNAVAILABLE";
- case GRPC_STATUS_DATA_LOSS:
+ case ::grpc::StatusCode::DATA_LOSS:
  return "DATA_LOSS";
  default:
  return "UNKNOWN";