Dart lint `omit_local_variable_types` false positive

main.dart

class Quality {}
class PerfectQuality extends Quality {}
class ImperfectQuality extends Quality {}

abstract class NotationSystem<T> implements Parser<T> {}

abstract class Parser<T> {
  bool matches(String source);
}

class PerfectQualityNotation extends NotationSystem<PerfectQuality> {
  @override
  bool matches(String source) => true;
}

class ImperfectQualityNotation extends NotationSystem<ImperfectQuality> {
  @override
  bool matches(String source) => true;
}

final perfectQualityNotation = PerfectQualityNotation();
final imperfectQualityNotation = ImperfectQualityNotation();

void main({bool flag = true}) {
  // ignore: omit_local_variable_types Autofixing this lint warning makes `parser.matches` call in L30 crash.
  final Parser<Quality> parser = flag
      ? perfectQualityNotation
      : imperfectQualityNotation;

  parser.matches('foo');
  //     ^^^^^^^ The method 'matches' isn't defined for the type 'Object'.
  //             Try correcting the name to the name of an existing method, or defining a method named 'matches'. dart(undefined_method)
}