New tests not discovered within the current workspace without restart

[adityasharad]

Describe the bug
When a new CodeQL test case/directory is added within an existing workspace, it is not visible in the Test Explorer until the workspace is closed and reopened.

To Reproduce

1. Add a workspace folder with existing test cases, e.g. a checkout of Semmle/ql
2. Duplicate a directory of test cases, e.g. copy ql/java/ql/test/dataflow/taint-ioutils to ql/java/ql/test/dataflow/taint-ioutils2.
3. Go to the Test Explorer view. The new test directory is not visible in the UI, and so cannot be run on its own. However, running the tests in a parent directory will pick up the new test cases.

Expected behavior
The new test directory is visible in the Test Explorer UI, and can be run directly.

Additional context
CodeQL for VS Code 1.1.1, Test Explorer UI 2.17.0, VS Code 1.42.1.

[tausbn]

3. ... However, running the tests in a parent directory will pick up the new test cases.

This did not work for me. Closing and reopening the workspace did, however.

[aeisenberg]

This is working for me. Closing the issue and we can revisit if anyone is still experiencing the problem.