Updated ctor registration.
Related test and documentation update:
code ok, but please add a lit test, e.g. extend test/Instrumentation/SanitizerCoverage/coverage.ll or some other nearby
added .ll test
I've added the test. PTAL.
Grhhh. Fails on mac :(
fatal error: error in backend: MachO doesn't support COMDATs, 'sancov.module_ctor' cannot be lowered.
I'll rollback and will see what I can do.