Hadrian: Warn when running hadrian --flavour=quickest test
It would be great if hadrian warned when running the test target with the quickest flavour.
I just ran into #12141 (closed). I'd never touched
mk/build.mk as my needs are limited.
There's very little warning against running the testsuite when using the quickest flavour. It's only documented in
The tests I did need to run while developing a patch weren't affected by the build flavour so the final sanity check was the only opportunity for this to surface.
If hadrian test could emit a warning at the start and either the end or the result summary about test results not being reliable when run with the quickest flavour such confusion could be avoided in the future.