Scope runs

This is not the ideal solution to #25, but it is the least fragile one I could find. Extracting the desired scope information is hard enough; but there is basically no way to inject ourselves between the scope and the test probe without swizzling, and even then it’s a) hit and miss at best, and b) undocumented, fragile, etc.

This can, and should, be worked into the test target template.

Fixes #25.