IR: make subtypes of IrDeclaration classes

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrAnonymousInitializer.kt

@@ -34,8 +34,8 @@ internal class PersistentIrAnonymousInitializer(
     origin: IrDeclarationOrigin,
     override val symbol: IrAnonymousInitializerSymbol,
     override val isStatic: Boolean = false
-) : PersistentIrDeclarationBase<AnonymousInitializerCarrier>,
-    IrAnonymousInitializer,
+) : IrAnonymousInitializer(),
+    PersistentIrDeclarationBase<AnonymousInitializerCarrier>,
     AnonymousInitializerCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrClass.kt

@@ -44,9 +44,8 @@ internal class PersistentIrClass(
     override val isExpect: Boolean = false,
     override val isFun: Boolean = false,
     override val source: SourceElement = SourceElement.NO_SOURCE
-) :
+) : IrClass(),
     PersistentIrDeclarationBase<ClassCarrier>,
-    IrClass,
     ClassCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrConstructor.kt

@@ -40,9 +40,8 @@ internal class PersistentIrConstructor(
     override val isExternal: Boolean,
     override val isPrimary: Boolean,
     override val isExpect: Boolean
-) :
+) : IrConstructor(),
     PersistentIrDeclarationBase<ConstructorCarrier>,
-    IrConstructor,
     ConstructorCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrEnumEntry.kt

@@ -32,8 +32,8 @@ internal class PersistentIrEnumEntry(
     origin: IrDeclarationOrigin,
     override val symbol: IrEnumEntrySymbol,
     override val name: Name
-) : PersistentIrDeclarationBase<EnumEntryCarrier>,
-    IrEnumEntry,
+) : IrEnumEntry(),
+    PersistentIrDeclarationBase<EnumEntryCarrier>,
     EnumEntryCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrErrorDeclaration.kt

@@ -31,7 +31,7 @@ internal class PersistentIrErrorDeclaration(
     override val startOffset: Int,
     override val endOffset: Int,
     override val descriptor: DeclarationDescriptor
-) : PersistentIrDeclarationBase<ErrorCarrier>, IrErrorDeclaration, ErrorCarrier {
+) : PersistentIrDeclarationBase<ErrorCarrier>, IrErrorDeclaration(), ErrorCarrier {
     override var lastModified: Int = stageController.currentStage
     override var loweredUpTo: Int = stageController.currentStage
     override var values: Array<Carrier>? = null

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrField.kt

@@ -40,8 +40,8 @@ internal class PersistentIrField(
     override val isFinal: Boolean,
     override val isExternal: Boolean,
     override val isStatic: Boolean
-) : PersistentIrDeclarationBase<FieldCarrier>,
-    IrField,
+) : IrField(),
+    PersistentIrDeclarationBase<FieldCarrier>,
     FieldCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrFunction.kt

@@ -34,9 +34,8 @@ internal abstract class PersistentIrFunctionCommon(
     override val isOperator: Boolean,
     override val isInfix: Boolean,
     override val isExpect: Boolean,
-) :
+) : IrSimpleFunction(),
     PersistentIrDeclarationBase<FunctionCarrier>,
-    IrSimpleFunction,
     FunctionCarrier {
 
     override var lastModified: Int = stageController.currentStage

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrLocalDelegatedProperty.kt

@@ -37,7 +37,7 @@ internal class PersistentIrLocalDelegatedProperty(
     override val isVar: Boolean
 ) :
     PersistentIrDeclarationBase<LocalDelegatedPropertyCarrier>,
-    IrLocalDelegatedProperty,
+    IrLocalDelegatedProperty(),
     LocalDelegatedPropertyCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrProperty.kt

@@ -40,8 +40,8 @@ internal abstract class PersistentIrPropertyCommon(
     override val isDelegated: Boolean,
     override val isExternal: Boolean,
     override val isExpect: Boolean,
-) : PersistentIrDeclarationBase<PropertyCarrier>,
-    IrProperty,
+) : IrProperty(),
+    PersistentIrDeclarationBase<PropertyCarrier>,
     PropertyCarrier {
 
     override var lastModified: Int = stageController.currentStage

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrTypeAlias.kt

@@ -25,9 +25,8 @@ internal class PersistentIrTypeAlias(
     override val expandedType: IrType,
     override val isActual: Boolean,
     origin: IrDeclarationOrigin
-) :
+) : IrTypeAlias(),
     PersistentIrDeclarationBase<TypeAliasCarrier>,
-    IrTypeAlias,
     TypeAliasCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrTypeParameter.kt

@@ -40,9 +40,8 @@ internal class PersistentIrTypeParameter(
     override val index: Int,
     override val isReified: Boolean,
     override val variance: Variance
-) :
+) : IrTypeParameter(),
     PersistentIrDeclarationBase<TypeParameterCarrier>,
-    IrTypeParameter,
     TypeParameterCarrier {
 
     init {

compiler/ir/ir.tree.persistent/src/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrValueParameter.kt

@@ -41,9 +41,8 @@ internal class PersistentIrValueParameter(
     override val varargElementType: IrType?,
     override val isCrossinline: Boolean,
     override val isNoinline: Boolean
-) :
+) : IrValueParameter(),
     PersistentIrDeclarationBase<ValueParameterCarrier>,
-    IrValueParameter,
     ValueParameterCarrier {
 
     @ObsoleteDescriptorBasedAPI