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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/kotlinSignature/error/WrongTypeParameterBoundStructure1.fir.txt
Vendored
+1 -1
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@@ -1,5 +1,5 @@
public open class WrongTypeParameterBoundStructure1 : R|kotlin/Any| {
public open fun <A : R|kotlin/Any!|, B : R|java/lang/Runnable!|, R|ft<kotlin/collections/MutableList<kotlin/Cloneable!>, kotlin/collections/List<kotlin/Cloneable!>?>|> foo(a: R|ft<A & Any, A?>|, b: R|ft<kotlin/collections/MutableList<out ft<B & Any, B?>>, kotlin/collections/List<out ft<B & Any, B?>>?>|): R|kotlin/Unit|
public open fun <A : R|kotlin/Any!|, B : R|java/lang/Runnable!|, R|ft<kotlin/collections/MutableList<kotlin/Cloneable!>, kotlin/collections/List<kotlin/Cloneable!>?>|> foo(a: R|A!|, b: R|ft<kotlin/collections/MutableList<out B!>, kotlin/collections/List<out B!>?>|): R|kotlin/Unit|
public constructor(): R|test/WrongTypeParameterBoundStructure1|