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K2: Rework scopes for types with projection arguments for Out types

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The only case when behavior is change is described at
 computeNonTrivialTypeArgumentForScopeSubstitutor

The idea is to avoid depending on the presence of @UnsafeVariance
and instead approximate captured types in covariant argument positions
before building substitution scopes

It's correct because for Captured(*) <: Supertype,
Out<Captured(*)> <: Out<Supertype> and when we've got @UnsafeVariance
value parameters at Out, it's ok to allow passing Supertype there.

^KT-57602 Fixed
^KT-54894 Fixed
This commit is contained in:
Denis.Zharkov
2023-03-24 17:21:03 +01:00
committed by Space Team
parent 1cd040fd6a
commit 55a58e54fe
25 changed files with 300 additions and 79 deletions
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compiler/testData/diagnostics/tests/inference/capturedTypes/capturedTypesSubstitutionIntoAbbreviation.fir.kt
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+3 -3
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@@ -25,7 +25,7 @@ fun main() {
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Nothing, kotlin.Unit>")!>getTag3().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Nothing, kotlin.Unit>")!>getTag4().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Nothing, kotlin.Any?>")!>getTag5().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Nothing, kotlin.Unit>")!>getTag6().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Nothing, kotlin.Unit>")!>getTag7().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Function1<kotlin.Nothing, kotlin.Any?>")!>getTag8().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("Action<in kotlin.Any?>")!>getTag6().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("Action<kotlin.Any?>")!>getTag7().action<!>
<!DEBUG_INFO_EXPRESSION_TYPE("Action2<kotlin.Any?>")!>getTag8().action<!>
}