#KT-36247 fixed
A lot of testdata changed because significanly less (error) descriptors
are created for unresolved types, so diagnostics became different.
Coersion to Unit from error type leads to misleading type mismatches:
"expected <expected lambda return type> found Unit", despite no user-provided Unit / empty lambda.
These diagnostics were collected, but not reported before, and that had been disguising the issue for a while.
KT-34729 Fixed
Expression will be checked against expected type later.
Theoretically, this is not very good, but it aligns with the old
inference, plus it helps avoiding multiple type mismatch diagnostics.
(introduced EXPECTED_PARAMETER_TYPE_MISMATCH, EXPECTED_RETURN_TYPE_MISMATCH, EXPECTED_PARAMETERS_NUMBER_MISMATCH
instead of reporting TYPE_MISMATCH on the whole function literal)
Mikhail Zarechenskiy