double clicking a sub test only navigates to failed tests

[amunger]

Testing #21495

1. run the full test suite from the linked issue
2. double click a failed test_even test
3. double click test_a1
4. double click a passed test_even test
   🐛 only step 4 does not open the test in the editor

[eleanorjboyd]

closing as a dup of microsoft/vscode#183835, thanks!