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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/fir/analysis-tests/testData/resolve/expresssions/genericDiagnostic.fir.txt
Vendored
+2 -2
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@@ -13,8 +13,8 @@ FILE: test.kt
lval element: R|DE| = R|<local>/d|.R|/Diagnostic.element|
R|/Fix.Fix|(R|<local>/element|)
}
private final val DERIVED_FACTORY: R|DiagnosticFactory0<DerivedElement>| = R|/DiagnosticFactory0.DiagnosticFactory0|<R|DerivedElement|>()
private get(): R|DiagnosticFactory0<DerivedElement>|
private final val DERIVED_FACTORY: R|DiagnosticFactory0<DerivedElement!>| = R|/DiagnosticFactory0.DiagnosticFactory0|<R|DerivedElement!|>()
private get(): R|DiagnosticFactory0<DerivedElement!>|
public final fun createViaFactory(d: R|EmptyDiagnostic|): R|kotlin/Unit| {
lval casted: R|Diagnostic<DerivedElement!>| = R|/DERIVED_FACTORY|.R|SubstitutionOverride</DiagnosticFactory0.cast: R|@EnhancedNullability Diagnostic<DerivedElement!>|>|(R|<local>/d|)
lval element: R|DerivedElement| = R|<local>/casted|.R|/Diagnostic.element|