From 68ca453467b59743d3cd1499af92cbb1dc0d6ff0 Mon Sep 17 00:00:00 2001
From: Mikhail Glukhikh <Mikhail.Glukhikh@jetbrains.com>
Date: Tue, 16 Aug 2022 16:45:38 +0200
Subject: [PATCH] K2: don't report REDECLARATION on Enum.entries

---
 .../kotlin/fir/analysis/checkers/FirDeclarationInspector.kt   | 1 +
 .../diagnostics/tests/enum/enumEntriesAmbiguity.fir.kt        | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/FirDeclarationInspector.kt b/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/FirDeclarationInspector.kt
index 51f7df8b52c..be1b5b36ec1 100644
--- a/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/FirDeclarationInspector.kt
+++ b/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/FirDeclarationInspector.kt
@@ -233,6 +233,7 @@ private val NO_NAME_PROVIDED = Name.special("<no name provided>")
 // you can't redeclare something that has no name.
 private fun FirDeclaration.isCollectable() = when (this) {
     is FirSimpleFunction -> source?.kind !is KtFakeSourceElementKind && name != NO_NAME_PROVIDED
+    is FirProperty -> source?.kind !is KtFakeSourceElementKind.EnumGeneratedDeclaration
     is FirRegularClass -> name != NO_NAME_PROVIDED
     else -> true
 }
diff --git a/compiler/testData/diagnostics/tests/enum/enumEntriesAmbiguity.fir.kt b/compiler/testData/diagnostics/tests/enum/enumEntriesAmbiguity.fir.kt
index 5666e2e2dd2..e7e05da76f6 100644
--- a/compiler/testData/diagnostics/tests/enum/enumEntriesAmbiguity.fir.kt
+++ b/compiler/testData/diagnostics/tests/enum/enumEntriesAmbiguity.fir.kt
@@ -1,8 +1,8 @@
 // !LANGUAGE: +EnumEntries
 // FIR_DUMP
 
-enum class <!REDECLARATION!>Ambiguous<!> {
-    first, <!REDECLARATION!>entries<!>;
+enum class Ambiguous {
+    first, entries;
 }
 
 val e = Ambiguous.<!OVERLOAD_RESOLUTION_AMBIGUITY!>entries<!>