The changes introduced 471134d31e are only needed
for the case of HMPP project while for other cases it might break the behavior
a bit like in KT-34027
See org.jetbrains.kotlin.resolve.calls.results.OverloadingConflictResolver#filterOutEquivalentCalls
Before 471134d we were comparing
"fun foo(x: String)" with "[substituted] fun foo(x: String)"
and areCallableDescriptorsEquivalent returned false for such case.
Thus, both overrides were left in the resulting set.
After 471134d, those two descriptors
becamed considered as equal thus having a possibility to remove any of them.
The problem is that "areCallableDescriptorsEquivalent" has kind of
unclear contract. Effectively it checks whether two descriptors match
to the same declaration
But straightforward fixing of this exact call-site (using original descriptors)
doesn't help: behavior might change in a very subtle way (see org.jetbrains.kotlin.spec.checkers.DiagnosticsTestSpecGenerated.NotLinked.Dfa.Pos#test72)
So, the main idea is changing the contract for areCallableDescriptorsEquivalent
only when project is HMPP one.
^KT-34027 In Progress
Denis Zharkov
67410f7a57