Avoid catches without on clauses

[t1ooo]

https://dart-lang.github.io/linter/lints/avoid_catches_without_on_clauses.html https://dart-lang.github.io/linter/lints/avoid_catching_errors.html

void main() {
  try {
    throw OutOfMemoryError();
  } catch (e) {
    print(e);
  }
  print('everything is fine');
}