unnecessary_import hint is not reported with single element import

[a14n]

import 'a.dart' show A1;
import 'a.dart';

A1? a1 = null;
// A2? a2 = null;

In the code above, there should be an unnecessary_import warning on one of the 2 imports (likely the second line because the first line is more tighten).

Note that if we uncomment the last line a unnecessary_import warning appears on the first line.

$ dart --version
Dart SDK version: 2.17.5 (stable) (Tue Jun 21 11:05:10 2022 +0200) on "linux_x64"

[bwilkerson]

@srawlins

[srawlins]

Those two imports provide the same set of used elements. In this case one is redundant. The issue for reporting redundant imports is #44569.

[srawlins]

Duplicate of #44569