See the relevant test at t/
estData/codegen/box/sam/contravariantIntersectionType.kt
After the previous commit, when generating a call for `doOnSuccess {}`,
we have a SAM type with removed projection Consumer<Any?>, while
real function type of the lambda is a bit different
(Function1<ConcreteType & ConcreteType2>).
While for me, that looks questionable, but in K1 it was effectively
resolved via the same implicit cast that on JVM is generated to an
INVOKEDYNAMIC that wraps initial function-typed value.
^KT-53552 Fixed
It would be more consistently to prohibit the behavior from the unmuted
test (see KT-52428), but it was decided to postpone the breaking change.
Unfortunately, it didn't work to make a test where for computing
star projections we would need to substitute other type parameters
because effectively, it's not allowed to have SAM conversion when
star projections/wildcard is based on a type parameter which bounds
use other type parameters.
^KT-53552 In progress
- Add utilities to add new attribute to ConeAttributes
- Get rid of FlexibleNullability attribute (it can be easily inferred
for any flexible type at any moment)
- Fix determining of EnhancedNullability attribute
Kirill Rakhman