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[FE 1.0] Report USELESS_IS_CHECK if is expression is always false

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^KT-47684 Fixed
This commit is contained in:
Dmitriy Novozhilov
2021-07-09 14:03:48 +03:00
committed by teamcityserver
parent 785e2f862c
commit 7b5a5f5682
24 changed files with 283 additions and 59 deletions
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idea/idea-frontend-fir/idea-fir-low-level-api/tests/org/jetbrains/kotlin/idea/fir/low/level/api/diagnostic/compiler/based/DiagnosisCompilerTestFE10TestdataTestGenerated.java
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+6
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@@ -3609,6 +3609,12 @@ public class DiagnosisCompilerTestFE10TestdataTestGenerated extends AbstractDiag
runTest("compiler/testData/diagnostics/tests/cast/FlexibleTargetType.kt");
}
@Test
@TestMetadata("isAlwaysFalse.kt")
public void testIsAlwaysFalse() throws Exception {
runTest("compiler/testData/diagnostics/tests/cast/isAlwaysFalse.kt");
}
@Test
@TestMetadata("IsErasedAllowForDerivedWithOneSubstitutedAndOneSameGeneric.kt")
public void testIsErasedAllowForDerivedWithOneSubstitutedAndOneSameGeneric() throws Exception {