Highlighting prefixed element is offset

[FMorschel]

Repro:

other.dart:

class MyClassName {}

main.dart

import 'other.dart' as i show MyClassName;

void f1([i.MyClassName? c]) {}

Now when you place the cursor over MyClassName it does highlight every reference to it but when you have the prefix it is offset/shorter (I'm unsure if you'd like to highlight the full i.MyClassName or only MyClassName):

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CC: @DanTup

[dart-github-bot]

Summary: The issue reports that when highlighting a prefixed element (i.MyClassName) in Dart code, the highlighting is offset and doesn't cover the entire prefixed name. The user is unsure whether the highlighting should include the prefix or just the element name.

[bwilkerson]

I believe that it should highlight just the name, and not the prefix. In other words, the bug is related to the computation of the offset, not the computation of the length.

[DanTup]

https://dart-review.googlesource.com/c/sdk/+/392580