* FSIO error signaling
- wrong keyword in FSIO now shows up as nice TS error message
- added f7 debug option for vsCode as well.
* Keep unit_test happy
* clang errors
* non-test-only
* debugging
* rules on mac
* makefile
* put back
* let's see if this way makes everybody happy
* no, it does nto
Co-authored-by: Matthew Kennedy <makenne@microsoft.com>