Assume we have a test file with syntax errors, now attempt to discover tests.
The discovery process will fail with no indication of the cause.
Using the old approach we'd see the full error message.

We probably need to implement:

• Logging of test discovery
• And returning of discovered results

See here https://github.com/Microsoft/vscode-python/wiki/Testing-Architecture-Review#adapter-for-discovery-running--debugging