Rule should report positional parameters from typedef if their name are not underscores.
Code below represents expected behavior.
typedef MaxFun = int Function(int a, int b);
// expect_lint: avoid-unused-parameters
final MaxFun maxFunLint = (int a, int b) => 1;
final MaxFun maxFunOk = (int _, int __) => 1;
Rule should report positional parameters from typedef if their name are not underscores.
Code below represents expected behavior.