[cmake-developers] CTest: Request review of topic "ctest-fix-run-serial"

[Nils Gladitz]

I just realized that CTest only prioritized failed tests in parallel 
test runs since it only modified COSTs in that case. So Casey was quite 
right noticing that there is a behavior change here.

I created a topic "restore-serial-failed-test-order" which limits that 
behavior to parallel test runs.
Should anyone prefer that behavior I could merge it to next.

Pro/con the current behavior in next:
+ Consistent sorting for serial and parallel test runs
- There may be users who expect a fixed order of tests in serial runs
- There may be tests in CMake that expect a fixed order of tests in 
serial runs(?)
+ When bug fixing or implementing (in case of TDD) the previously failed 
tests are those that a user is waiting for the most so it may make sense 
to have them run first (I assume that is why it was implemented for 
parallel testing)

Nils