Note that 3 tests are still muted, but for another reason: for FIR
versions of the tests, we need to compile the "pre-release library" with
the next language version which is 2.1. But since currently
LanguageVersion.LATEST_STABLE is 1.9, the compiler refuses to read
metadata of version 2.1, regardless of its own language version. Which
is correct, but it leads to irrelevant errors in the test output -- the
ones about the incompatible metadata version, NOT about the
prereleaseness.
These 3 tests can be unmuted once the default language version is
switched to 2.0.
#KT-60780 Fixed
The problem here is that we have separate bootstrap compiler and
artifacts (stdlib, for example) that are used in tests and implicitly
participate in them.
For example, this test started to fail when bootstrap compiler was
advanced to a version where pre_release flag is enabled. As a result,
dependent stdlib become pre_release as well and now we have additional
error about `Unit` type
This has no effect for the original use case of mock class descriptors
(unresolved classes used in libraries), but is necessary for pre-release
classes in case the compiler is a release, because such classes end up in scope
and can be the result of the resolution
Evgeniy.Zhelenskiy