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K2: repeat K1 representation for flexible type parameters

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This commit changes the behavior of KT-59138 effectively declining it in 2.0.
However, we plan to implement KT-59138 behavior under a feature
flag in 2.0 (see KT-66447), and switch this feature on version 2.x.

Also, this commit implements the LC resolution about postponing
KT-57014 change. We don't have KT-57014 described behavior in 2.0 anymore.
However, we plan to implement a deprecation warning here, see KT-65578.

After this commit, 6 diagnostic tests become incorrectly broken:
- 5 tests from PurelyImplementedCollection group
- a test platformTypes/nullableTypeArgument.kt

This commit also breaks currently fixed-in-k2 KT-50134
(it is fixed again in the following commits),
as well as KT-58933 (it will remain not fixed till we enable KT-59138
behavior again).

#KT-65596 In Progress
#KT-57014 In Progress
#KT-58933 Submitted
This commit is contained in:
Denis.Zharkov
2024-02-06 15:33:03 +01:00
committed by Space Team
parent 7fd46f1450
commit 81414d758d
160 changed files with 343 additions and 479 deletions
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compiler/testData/loadJava/compiledJava/InnerClassesInGeneric.fir.txt
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+2 -2
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@@ -5,8 +5,8 @@ public open class InnerClassesInGeneric<P : R|kotlin/Any!|, Q : R|kotlin/Any!|>
public test/InnerClassesInGeneric<P, Q>.constructor(): R|test/InnerClassesInGeneric.Inner<P, Q>|
}
public open inner class Inner2<Outer(P) : R|kotlin/Any!|, Outer(Q) : R|kotlin/Any!|> : R|test/InnerClassesInGeneric.Inner<ft<P & Any, P?>, ft<Q & Any, Q?>>| {
public open operator fun iterator(): R|ft<kotlin/collections/MutableIterator<ft<P & Any, P?>>, kotlin/collections/Iterator<ft<P & Any, P?>>?>|
public open inner class Inner2<Outer(P) : R|kotlin/Any!|, Outer(Q) : R|kotlin/Any!|> : R|test/InnerClassesInGeneric.Inner<P!, Q!>| {
public open operator fun iterator(): R|ft<kotlin/collections/MutableIterator<P!>, kotlin/collections/Iterator<P!>?>|
public test/InnerClassesInGeneric<P, Q>.constructor(): R|test/InnerClassesInGeneric.Inner2<P, Q>|