Effectively, this commit allows for common module
to see internal content of all expect-modules
The problem is that when computing the member scope for A (see the test)
we're building a special member scope for CommonAbstract viewed from JVM
and it's effectively has a fake override of actual member from Jvm/ExpectBase.
OverridingUtil checks if it's visible in CommonAbstract and finds that it's not
thus creating a fake_invisible fake override
The latter results in A::foo override being marked as INVISIBLE_MEMBER_OVERRIDE
Probably, the fix might be smarter
(passing a requested module to OverridingUtil::createAndBindFakeOverride)
but allowing using internal member seems to be safe & simple
because it's reasonable to assume there's no cyclic dependencies
between expected/actual modules
Denis Zharkov