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[NI] Make subtyping algorithm more robust to error types

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During subtyping/incorporation we transform types (e.g. changing nullability,
 form of the type) and, basically, we're doing this to some FIXPOINT.
 It's important that we use `KotlinType.hashCode()` to compare types, but
 for error types hashCode is a hashCode of its supertype and, for example,
 `makeNullableAsSpecified` method recreate type every time. So, we continue
 to generate new constraints and we'll never stop incorporation algorithm
This commit is contained in:
Mikhail Zarechenskiy
2018-06-07 11:48:16 +03:00
parent 1ee37b1772
commit 9891f562cc
15 changed files with 94 additions and 20 deletions
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compiler/testData/diagnostics/tests/properties/inferenceFromGetters/recursiveGetter.ni.txt
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+2 -2
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@@ -10,8 +10,8 @@ public final class A {
public final val b: [ERROR : Error function type]
public final val u: [ERROR : Error function type]
public final val y: [ERROR : Error function type]
public final val z1: [ERROR : Error type for ParseError-argument VALUE_ARGUMENT]
public final val z2: kotlin.collections.List<[ERROR : Error type for ParseError-argument VALUE_ARGUMENT]>
public final val z1: kotlin.Nothing
public final val z2: kotlin.collections.List<kotlin.Nothing>
public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String