I don't know If it's a known problem but auto tester resources
are lost by PR that only change or add DDOC comments. For example
whole dmd+runtime+phobos can be rebuild 3 times per day on 8
machines while it's not necessary.
I understand that's a side-effect of the doc being directly in
the code, but...
Wouldn't be possible to run a background tool, based on
libdparse, that
- detects changed lines in the diff.
- run the libdparse-based tool to see if changed lines are only
in the ddoc.
Depending on the results, either only CyberShadow's doc builder
would run or also the big auto-tester.
