message: refine checker msg
diff: @@ -26,21 +26,21 @@ namespace checker {
  #define enforce_has_field(proto, field) \
  do { \
  if (!proto.has_##field()) { \
  - fail_check("Field '", #field, "' of ", #proto, " is required but missing."); \
  + fail_check("Field '", #field, "' of '", #proto, "' is required but missing."); \
  } \
  } while (0)
  #define enforce_has_repeated_field(proto, field) \
  do { \
  if (!proto.field##_size()) { \
  - fail_check("Repeated Field '", #field, "' is required but missing."); \
  + fail_check("Repeated Field '", #field, "' of '", #proto, "' is required but missing."); \
  } \
  } while (0)
  #define enforce_non_empty_field(proto, field) \
  do { \
  if (proto.field().empty()) { \
  - fail_check("Field '", #field, "' of ", #proto, " is required to be non-empty."); \
  + fail_check("Field '", #field, "' of '", #proto, "' is required to be non-empty."); \
  } \
  } while (0)
  