I'm on a Mac using Clang 6. I have a project with a few targets and they all worked as expected until recently when suddenly I could not debug my unit tests. I give the command to debug and it immediately comes back with 

```
Process finished with exit code 0
Empty test suite.

```

I can `run` the target from within CLion (or outside of it) and it runs as expected. I can debug other targets as expected. 

CLion is building the un-debug-able target as expected. I've created additional CLion configurations with the program and none of them will debug it correctly - whether set up as a "normal" app or as a google test app in CLion. 

I don't have my CLion config files in version control and CLion's local history isn't available on them - the option is greyed out.

I don't know what information to post here and I'm hoping someone else has seen something like this or can guess what I might have done. I've rebooted my computer as well as "invalidate caches and restart" in CLion. None of them had any effect.