Fix for ambiguous import doesn't trigger for static members

[FMorschel]

After #56830 I've noticed that the fix doesn't work for static members (constructors, enum constants, etc).

import 'lib1.dart'; // Imports a `MyClass`
import 'lib2.dart'; // Imports another `MyClass`

void f() {
  var _ = [MyClass.new];
}

It doesn't offer a fix.

Here is the CL https://dart-review.googlesource.com/c/sdk/+/414360