How should avoid_setters_without_getters handle extension types?

[srawlins]

See https://dart.dev/tools/linter-rules/avoid_setters_without_getters. What if we have this:

class C {
  int get x => 1;
}

extension type E(C it) implements C {
  set x(int newValue) => it.x = newValue;
}

Should avoid_setters_without_getters fire on this extension type? I think not... But maybe? Imagine a more realistic example where C subclasses another class D, and the extension type exposes (implements) D, and get x is declared on D.

Also imagine an example where E implements another extension type, and get x is declared on that extension type.

[bwilkerson]

The lint's documentation isn't very clear, but it seems to me that the lint shouldn't flag a setter if the members of the container include a getter with the same base name, no matter how the getter is a member (inheritance, exposure, etc.).