"dart test --version" doesn't work in workspace folders

[DanTup]

Running dart test --version inside a project that is part of a Pub Workspace fails with "Couldn't find version number". It works fine in the root of the workspace:

PS D:\Dev\Temp Projects\workspace_bug_repro> dart test --version
Building package executable... (2.1s)
Built test:test.
1.26.2


PS D:\Dev\Temp Projects\workspace_bug_repro> cd .\packages\application\
PS D:\Dev\Temp Projects\workspace_bug_repro\packages\application> dart test --version       
Couldn't find version number.

Dart-Code uses this command to determine the pkg:test capabilities (to know if we can use --ignore-timeouts) and while we could locate the workspace root, this feels like a bug.

[jakemac53]

Looks like it looks for the pubspec.lock file and reads that.

A better implementation would probably be to just hardcode a variable and have a test that ensures it matches the actual pubspec version.