K2: add stubs for enum entries deprecation diagnostics (KT-59344)

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDataClassConverters.kt

@@ -4785,6 +4785,30 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirErrors.DEPRECATED_ACCESS_TO_ENUM_ENTRY_COMPANION_PROPERTY) { firDiagnostic ->
+        DeprecatedAccessToEnumEntryCompanionPropertyImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirErrors.DEPRECATED_ACCESS_TO_ENTRY_PROPERTY_FROM_ENUM) { firDiagnostic ->
+        DeprecatedAccessToEntryPropertyFromEnumImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirErrors.DEPRECATED_ACCESS_TO_ENUM_ENTRY_PROPERTY_AS_REFERENCE) { firDiagnostic ->
+        DeprecatedAccessToEnumEntryPropertyAsReferenceImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirErrors.DEPRECATED_DECLARATION_OF_ENUM_ENTRY) { firDiagnostic ->
+        DeprecatedDeclarationOfEnumEntryImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
     add(FirJvmErrors.CONFLICTING_JVM_DECLARATIONS) { firDiagnostic ->
         ConflictingJvmDeclarationsImpl(
             firDiagnostic as KtPsiDiagnostic,

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnostics.kt

@@ -3338,6 +3338,22 @@ sealed interface KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = RedundantLabelWarning::class
     }
 
+    interface DeprecatedAccessToEnumEntryCompanionProperty : KtFirDiagnostic<PsiElement> {
+        override val diagnosticClass get() = DeprecatedAccessToEnumEntryCompanionProperty::class
+    }
+
+    interface DeprecatedAccessToEntryPropertyFromEnum : KtFirDiagnostic<PsiElement> {
+        override val diagnosticClass get() = DeprecatedAccessToEntryPropertyFromEnum::class
+    }
+
+    interface DeprecatedAccessToEnumEntryPropertyAsReference : KtFirDiagnostic<PsiElement> {
+        override val diagnosticClass get() = DeprecatedAccessToEnumEntryPropertyAsReference::class
+    }
+
+    interface DeprecatedDeclarationOfEnumEntry : KtFirDiagnostic<KtEnumEntry> {
+        override val diagnosticClass get() = DeprecatedDeclarationOfEnumEntry::class
+    }
+
     interface ConflictingJvmDeclarations : KtFirDiagnostic<PsiElement> {
         override val diagnosticClass get() = ConflictingJvmDeclarations::class
     }

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnosticsImpl.kt

@@ -4028,6 +4028,26 @@ internal class RedundantLabelWarningImpl(
     token: KtLifetimeToken,
 ) : KtAbstractFirDiagnostic<KtLabelReferenceExpression>(firDiagnostic, token), KtFirDiagnostic.RedundantLabelWarning
 
+internal class DeprecatedAccessToEnumEntryCompanionPropertyImpl(
+    firDiagnostic: KtPsiDiagnostic,
+    token: KtLifetimeToken,
+) : KtAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KtFirDiagnostic.DeprecatedAccessToEnumEntryCompanionProperty
+
+internal class DeprecatedAccessToEntryPropertyFromEnumImpl(
+    firDiagnostic: KtPsiDiagnostic,
+    token: KtLifetimeToken,
+) : KtAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KtFirDiagnostic.DeprecatedAccessToEntryPropertyFromEnum
+
+internal class DeprecatedAccessToEnumEntryPropertyAsReferenceImpl(
+    firDiagnostic: KtPsiDiagnostic,
+    token: KtLifetimeToken,
+) : KtAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KtFirDiagnostic.DeprecatedAccessToEnumEntryPropertyAsReference
+
+internal class DeprecatedDeclarationOfEnumEntryImpl(
+    firDiagnostic: KtPsiDiagnostic,
+    token: KtLifetimeToken,
+) : KtAbstractFirDiagnostic<KtEnumEntry>(firDiagnostic, token), KtFirDiagnostic.DeprecatedDeclarationOfEnumEntry
+
 internal class ConflictingJvmDeclarationsImpl(
     firDiagnostic: KtPsiDiagnostic,
     token: KtLifetimeToken,

compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirDiagnosticsList.kt

@@ -1699,6 +1699,13 @@ object DIAGNOSTICS_LIST : DiagnosticList("FirErrors") {
     val LABEL by object : DiagnosticGroup("label") {
         val REDUNDANT_LABEL_WARNING by warning<KtLabelReferenceExpression>(PositioningStrategy.LABEL)
     }
+
+    val ENUM_ENTRIES_DEPRECATIONS by object : DiagnosticGroup("Enum.entries resolve deprecations") {
+        val DEPRECATED_ACCESS_TO_ENUM_ENTRY_COMPANION_PROPERTY by warning<PsiElement>()
+        val DEPRECATED_ACCESS_TO_ENTRY_PROPERTY_FROM_ENUM by warning<PsiElement>()
+        val DEPRECATED_ACCESS_TO_ENUM_ENTRY_PROPERTY_AS_REFERENCE by warning<PsiElement>()
+        val DEPRECATED_DECLARATION_OF_ENUM_ENTRY by warning<KtEnumEntry>()
+    }
 }
 
 private val exposedVisibilityDiagnosticInit: DiagnosticBuilder.() -> Unit = {

compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrors.kt

@@ -845,6 +845,12 @@ object FirErrors {
     // label
     val REDUNDANT_LABEL_WARNING by warning0<KtLabelReferenceExpression>(SourceElementPositioningStrategies.LABEL)
 
+    // Enum.entries resolve deprecations
+    val DEPRECATED_ACCESS_TO_ENUM_ENTRY_COMPANION_PROPERTY by warning0<PsiElement>()
+    val DEPRECATED_ACCESS_TO_ENTRY_PROPERTY_FROM_ENUM by warning0<PsiElement>()
+    val DEPRECATED_ACCESS_TO_ENUM_ENTRY_PROPERTY_AS_REFERENCE by warning0<PsiElement>()
+    val DEPRECATED_DECLARATION_OF_ENUM_ENTRY by warning0<KtEnumEntry>()
+
     init {
         RootDiagnosticRendererFactory.registerFactory(FirErrorsDefaultMessages)
     }

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrorsDefaultMessages.kt

@@ -174,7 +174,11 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DELEGATE_USES_EXT
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DELEGATION_IN_INTERFACE
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DELEGATION_NOT_TO_INTERFACE
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DELEGATION_SUPER_CALL_IN_ENUM_CONSTRUCTOR
+import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_ACCESS_TO_ENTRY_PROPERTY_FROM_ENUM
+import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_ACCESS_TO_ENUM_ENTRY_COMPANION_PROPERTY
+import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_ACCESS_TO_ENUM_ENTRY_PROPERTY_AS_REFERENCE
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_BINARY_MOD
+import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_DECLARATION_OF_ENUM_ENTRY
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_IDENTITY_EQUALS
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_MODIFIER
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DEPRECATED_MODIFIER_CONTAINING_DECLARATION
@@ -2431,6 +2435,24 @@ object FirErrorsDefaultMessages : BaseDiagnosticRendererFactory() {
             "Label is redundant, because it cannot be referenced in a 'break', 'continue', or 'return' expression."
         )
 
+        // Enum entries deprecations
+        map.put(
+            DEPRECATED_ACCESS_TO_ENUM_ENTRY_COMPANION_PROPERTY,
+            "Ambiguous access to the enum companion's property 'entries' is deprecated. Please, add the explicit 'Companion' qualifier to the class name."
+        )
+        map.put(
+            DEPRECATED_ACCESS_TO_ENTRY_PROPERTY_FROM_ENUM,
+            "Ambiguous access to the 'entries' property from within the enum is deprecated. Please add the explicit qualifier to the call."
+        )
+        map.put(
+            DEPRECATED_ACCESS_TO_ENUM_ENTRY_PROPERTY_AS_REFERENCE,
+            "Ambiguous access to the 'entries' property is deprecated. Please specify the type of the referenced expression explicitly."
+        )
+        map.put(
+            DEPRECATED_DECLARATION_OF_ENUM_ENTRY,
+            "Conflicting declarations: the enum entry 'entries' and the property 'Enum.entries' (KT-48872). Please rename the enum entry declaration."
+        )
+
         // Extended checkers group
         map.put(REDUNDANT_VISIBILITY_MODIFIER, "Redundant visibility modifier.")
         map.put(REDUNDANT_MODALITY_MODIFIER, "Redundant modality modifier.")