JS PIR: updated declarations

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

@@ -25,6 +25,8 @@ import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.ClassCarrier
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
+import org.jetbrains.kotlin.ir.symbols.IrValueParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.name.Name
 
@@ -83,6 +85,12 @@ internal class PersistentIrClass(
 
     override var thisReceiverField: IrValueParameter? = null
 
+    override var thisReceiverSymbolField: IrValueParameterSymbol?
+        get() = thisReceiverField?.symbol
+        set(v) {
+            thisReceiverField = v?.owner
+        }
+
     override var thisReceiver: IrValueParameter?
         get() = getCarrier().thisReceiverField
         set(v) {
@@ -110,6 +118,12 @@ internal class PersistentIrClass(
 
     override var typeParametersField: List<IrTypeParameter> = emptyList()
 
+    override var typeParametersSymbolField: List<IrTypeParameterSymbol>
+        get() = typeParametersField.map { it.symbol }
+        set(v) {
+            typeParametersField = v.map { it.owner }
+        }
+
     override var typeParameters: List<IrTypeParameter>
         get() = getCarrier().typeParametersField
         set(v) {
@@ -130,16 +144,7 @@ internal class PersistentIrClass(
             }
         }
 
-    override var metadataField: MetadataSource? = null
-
-    override var metadata: MetadataSource?
-        get() = getCarrier().metadataField
-        set(v) {
-            if (metadata !== v) {
-                setCarrier()
-                metadataField = v
-            }
-        }
+    override var metadata: MetadataSource? = null
 
     override var modalityField: Modality = modality
 
@@ -152,14 +157,5 @@ internal class PersistentIrClass(
             }
         }
 
-    override var attributeOwnerIdField: IrAttributeContainer = this
-
-    override var attributeOwnerId: IrAttributeContainer
-        get() = getCarrier().attributeOwnerIdField
-        set(v) {
-            if (attributeOwnerId !== v) {
-                setCarrier()
-                attributeOwnerIdField = v
-            }
-        }
+    override var attributeOwnerId: IrAttributeContainer = this
 }

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

@@ -19,6 +19,8 @@ import org.jetbrains.kotlin.ir.declarations.persistent.carriers.ConstructorCarri
 import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrConstructorSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
+import org.jetbrains.kotlin.ir.symbols.IrValueParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.impl.IrUninitializedType
 import org.jetbrains.kotlin.ir.types.impl.ReturnTypeIsNotInitializedException
@@ -80,6 +82,12 @@ internal class PersistentIrConstructor(
 
     override var typeParametersField: List<IrTypeParameter> = emptyList()
 
+    override var typeParametersSymbolField: List<IrTypeParameterSymbol>
+        get() = typeParametersField.map { it.symbol }
+        set(v) {
+            typeParametersField = v.map { it.owner }
+        }
+
     override var typeParameters: List<IrTypeParameter>
         get() = getCarrier().typeParametersField
         set(v) {
@@ -91,6 +99,12 @@ internal class PersistentIrConstructor(
 
     override var dispatchReceiverParameterField: IrValueParameter? = null
 
+    override var dispatchReceiverParameterSymbolField: IrValueParameterSymbol?
+        get() = dispatchReceiverParameterField?.symbol
+        set(v) {
+            dispatchReceiverParameterField = v?.owner
+        }
+
     override var dispatchReceiverParameter: IrValueParameter?
         get() = getCarrier().dispatchReceiverParameterField
         set(v) {
@@ -102,6 +116,12 @@ internal class PersistentIrConstructor(
 
     override var extensionReceiverParameterField: IrValueParameter? = null
 
+    override var extensionReceiverParameterSymbolField: IrValueParameterSymbol?
+        get() = extensionReceiverParameterField?.symbol
+        set(v) {
+            extensionReceiverParameterField = v?.owner
+        }
+
     override var extensionReceiverParameter: IrValueParameter?
         get() = getCarrier().extensionReceiverParameterField
         set(v) {
@@ -113,6 +133,12 @@ internal class PersistentIrConstructor(
 
     override var valueParametersField: List<IrValueParameter> = emptyList()
 
+    override var valueParametersSymbolField: List<IrValueParameterSymbol>
+        get() = valueParametersField.map { it.symbol }
+        set(v) {
+            valueParametersField = v.map { it.owner }
+        }
+
     override var valueParameters: List<IrValueParameter>
         get() = getCarrier().valueParametersField
         set(v) {
@@ -136,16 +162,7 @@ internal class PersistentIrConstructor(
             }
         }
 
-    override var metadataField: MetadataSource? = null
-
-    override var metadata: MetadataSource?
-        get() = getCarrier().metadataField
-        set(v) {
-            if (metadata !== v) {
-                setCarrier()
-                metadataField = v
-            }
-        }
+    override var metadata: MetadataSource? = null
 
     override var visibilityField: DescriptorVisibility = visibility
 

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

@@ -15,6 +15,7 @@ import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.EnumEntryCarrier
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.expressions.IrExpressionBody
+import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.symbols.IrEnumEntrySymbol
 import org.jetbrains.kotlin.name.Name
 
@@ -51,6 +52,12 @@ internal class PersistentIrEnumEntry(
 
     override var correspondingClassField: IrClass? = null
 
+    override var correspondingClassSymbolField: IrClassSymbol?
+        get() = correspondingClassField?.symbol
+        set(v) {
+            correspondingClassField = v?.owner
+        }
+
     override var correspondingClass: IrClass?
         get() = getCarrier().correspondingClassField
         set(v) {

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

@@ -82,16 +82,7 @@ internal class PersistentIrField(
             }
         }
 
-    override var metadataField: MetadataSource? = null
-
-    override var metadata: MetadataSource?
-        get() = getCarrier().metadataField
-        set(v) {
-            if (metadata !== v) {
-                setCarrier()
-                metadataField = v
-            }
-        }
+    override var metadata: MetadataSource? = null
 
     override var typeField: IrType = type
 

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrFunctionCommon.kt

@@ -19,6 +19,8 @@ import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrPropertySymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
+import org.jetbrains.kotlin.ir.symbols.IrValueParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.impl.IrUninitializedType
 import org.jetbrains.kotlin.ir.types.impl.ReturnTypeIsNotInitializedException
@@ -78,6 +80,12 @@ internal abstract class PersistentIrFunctionCommon(
 
     override var typeParametersField: List<IrTypeParameter> = emptyList()
 
+    override var typeParametersSymbolField: List<IrTypeParameterSymbol>
+        get() = typeParametersField.map { it.symbol }
+        set(v) {
+            typeParametersField = v.map { it.owner }
+        }
+
     override var typeParameters: List<IrTypeParameter>
         get() = getCarrier().typeParametersField
         set(v) {
@@ -89,6 +97,12 @@ internal abstract class PersistentIrFunctionCommon(
 
     override var dispatchReceiverParameterField: IrValueParameter? = null
 
+    override var dispatchReceiverParameterSymbolField: IrValueParameterSymbol?
+        get() = dispatchReceiverParameterField?.symbol
+        set(v) {
+            dispatchReceiverParameterField = v?.owner
+        }
+
     override var dispatchReceiverParameter: IrValueParameter?
         get() = getCarrier().dispatchReceiverParameterField
         set(v) {
@@ -100,6 +114,12 @@ internal abstract class PersistentIrFunctionCommon(
 
     override var extensionReceiverParameterField: IrValueParameter? = null
 
+    override var extensionReceiverParameterSymbolField: IrValueParameterSymbol?
+        get() = extensionReceiverParameterField?.symbol
+        set(v) {
+            extensionReceiverParameterField = v?.owner
+        }
+
     override var extensionReceiverParameter: IrValueParameter?
         get() = getCarrier().extensionReceiverParameterField
         set(v) {
@@ -111,6 +131,12 @@ internal abstract class PersistentIrFunctionCommon(
 
     override var valueParametersField: List<IrValueParameter> = emptyList()
 
+    override var valueParametersSymbolField: List<IrValueParameterSymbol>
+        get() = valueParametersField.map { it.symbol }
+        set(v) {
+            valueParametersField = v.map { it.owner }
+        }
+
     override var valueParameters: List<IrValueParameter>
         get() = getCarrier().valueParametersField
         set(v) {
@@ -134,16 +160,7 @@ internal abstract class PersistentIrFunctionCommon(
             }
         }
 
-    override var metadataField: MetadataSource? = null
-
-    override var metadata: MetadataSource?
-        get() = getCarrier().metadataField
-        set(v) {
-            if (metadata !== v) {
-                setCarrier()
-                metadataField = v
-            }
-        }
+    override var metadata: MetadataSource? = null
 
     override var visibilityField: DescriptorVisibility = visibility
 
@@ -167,17 +184,7 @@ internal abstract class PersistentIrFunctionCommon(
             }
         }
 
-    @Suppress("LeakingThis")
-    override var attributeOwnerIdField: IrAttributeContainer = this
-
-    override var attributeOwnerId: IrAttributeContainer
-        get() = getCarrier().attributeOwnerIdField
-        set(v) {
-            if (attributeOwnerId !== v) {
-                setCarrier()
-                attributeOwnerIdField = v
-            }
-        }
+    override var attributeOwnerId: IrAttributeContainer = this
 
     override var correspondingPropertySymbolField: IrPropertySymbol? = null
 

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

@@ -17,6 +17,7 @@ import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.LocalDelegatedPropertyCarrier
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrLocalDelegatedPropertySymbol
+import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.name.Name
 
@@ -78,6 +79,12 @@ internal class PersistentIrLocalDelegatedProperty(
 
     override var getterField: IrSimpleFunction? = null
 
+    override var getterSymbolField: IrSimpleFunctionSymbol?
+        get() = getterField?.symbol
+        set(v) {
+            getterField = v?.owner
+        }
+
     override var getter: IrSimpleFunction
         get() = getCarrier().getterField!!
         set(v) {
@@ -89,6 +96,12 @@ internal class PersistentIrLocalDelegatedProperty(
 
     override var setterField: IrSimpleFunction? = null
 
+    override var setterSymbolField: IrSimpleFunctionSymbol?
+        get() = setterField?.symbol
+        set(v) {
+            setterField = v?.owner
+        }
+
     override var setter: IrSimpleFunction?
         get() = getCarrier().setterField
         set(v) {
@@ -98,14 +111,5 @@ internal class PersistentIrLocalDelegatedProperty(
             }
         }
 
-    override var metadataField: MetadataSource? = null
-
-    override var metadata: MetadataSource?
-        get() = getCarrier().metadataField
-        set(v) {
-            if (metadata !== v) {
-                setCarrier()
-                metadataField = v
-            }
-        }
+    override var metadata: MetadataSource? = null
 }

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/PersistentIrPropertyCommon.kt

@@ -16,6 +16,8 @@ import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.PropertyCarrier
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrFieldSymbol
+import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedContainerSource
 
@@ -51,6 +53,12 @@ internal abstract class PersistentIrPropertyCommon(
 
     override var backingFieldField: IrField? = null
 
+    override var backingFieldSymbolField: IrFieldSymbol?
+        get() = backingFieldField?.symbol
+        set(v) {
+            backingFieldField = v?.owner
+        }
+
     override var backingField: IrField?
         get() = getCarrier().backingFieldField
         set(v) {
@@ -62,6 +70,12 @@ internal abstract class PersistentIrPropertyCommon(
 
     override var getterField: IrSimpleFunction? = null
 
+    override var getterSymbolField: IrSimpleFunctionSymbol?
+        get() = getterField?.symbol
+        set(v) {
+            getterField = v?.owner
+        }
+
     override var getter: IrSimpleFunction?
         get() = getCarrier().getterField
         set(v) {
@@ -73,6 +87,12 @@ internal abstract class PersistentIrPropertyCommon(
 
     override var setterField: IrSimpleFunction? = null
 
+    override var setterSymbolField: IrSimpleFunctionSymbol?
+        get() = setterField?.symbol
+        set(v) {
+            setterField = v?.owner
+        }
+
     override var setter: IrSimpleFunction?
         get() = getCarrier().setterField
         set(v) {
@@ -82,26 +102,8 @@ internal abstract class PersistentIrPropertyCommon(
             }
         }
 
-    override var metadataField: MetadataSource? = null
-
-    override var metadata: MetadataSource?
-        get() = getCarrier().metadataField
-        set(v) {
-            if (metadata !== v) {
-                setCarrier()
-                metadataField = v
-            }
-        }
+    override var metadata: MetadataSource? = null
 
     @Suppress("LeakingThis")
-    override var attributeOwnerIdField: IrAttributeContainer = this
-
-    override var attributeOwnerId: IrAttributeContainer
-        get() = getCarrier().attributeOwnerIdField
-        set(v) {
-            if (attributeOwnerId !== v) {
-                setCarrier()
-                attributeOwnerIdField = v
-            }
-        }
+    override var attributeOwnerId: IrAttributeContainer = this
 }

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

@@ -16,6 +16,7 @@ import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.TypeAliasCarrier
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrTypeAliasSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.name.Name
 
@@ -55,6 +56,12 @@ internal class PersistentIrTypeAlias(
 
     override var typeParametersField: List<IrTypeParameter> = emptyList()
 
+    override var typeParametersSymbolField: List<IrTypeParameterSymbol>
+        get() = typeParametersField.map { it.symbol }
+        set(v) {
+            typeParametersField = v.map { it.owner }
+        }
+
     override var typeParameters: List<IrTypeParameter>
         get() = getCarrier().typeParametersField
         set(v) {

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/AnonymousInitializerCarrier.kt

@@ -6,9 +6,9 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.expressions.IrBlockBody
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
 
@@ -18,7 +18,7 @@ internal interface AnonymousInitializerCarrier : DeclarationCarrier{
     override fun clone(): AnonymousInitializerCarrier {
         return AnonymousInitializerCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
             bodyField
@@ -28,7 +28,7 @@ internal interface AnonymousInitializerCarrier : DeclarationCarrier{
 
 internal class AnonymousInitializerCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
     override val bodyField: IrBlockBody?

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/ClassCarrier.kt

@@ -7,38 +7,36 @@ package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.descriptors.DescriptorVisibility
 import org.jetbrains.kotlin.descriptors.Modality
-import org.jetbrains.kotlin.ir.declarations.IrAttributeContainer
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
 import org.jetbrains.kotlin.ir.declarations.IrValueParameter
-import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
+import org.jetbrains.kotlin.ir.symbols.IrValueParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
 
 internal interface ClassCarrier : DeclarationCarrier{
     val thisReceiverField: IrValueParameter?
-    val metadataField: MetadataSource?
+    val thisReceiverSymbolField: IrValueParameterSymbol?
     val visibilityField: DescriptorVisibility
     val modalityField: Modality
-    val attributeOwnerIdField: IrAttributeContainer
     val typeParametersField: List<IrTypeParameter>
+    val typeParametersSymbolField: List<IrTypeParameterSymbol>
     val superTypesField: List<IrType>
 
     override fun clone(): ClassCarrier {
         return ClassCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
-            thisReceiverField,
-            metadataField,
+            thisReceiverSymbolField,
             visibilityField,
             modalityField,
-            attributeOwnerIdField,
-            typeParametersField,
+            typeParametersSymbolField,
             superTypesField
         )
     }
@@ -46,14 +44,18 @@ internal interface ClassCarrier : DeclarationCarrier{
 
 internal class ClassCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
-    override val thisReceiverField: IrValueParameter?,
-    override val metadataField: MetadataSource?,
+    override val thisReceiverSymbolField: IrValueParameterSymbol?,
     override val visibilityField: DescriptorVisibility,
     override val modalityField: Modality,
-    override val attributeOwnerIdField: IrAttributeContainer,
-    override val typeParametersField: List<IrTypeParameter>,
+    override val typeParametersSymbolField: List<IrTypeParameterSymbol>,
     override val superTypesField: List<IrType>
-) : ClassCarrier
+) : ClassCarrier {
+
+    override val thisReceiverField: IrValueParameter?
+        get() = thisReceiverSymbolField?.owner
+
+    override val typeParametersField: List<IrTypeParameter> by lazy { typeParametersSymbolField.map { it.owner } }
+}

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/ConstructorCarrier.kt

@@ -7,12 +7,13 @@ package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.descriptors.DescriptorVisibility
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
 import org.jetbrains.kotlin.ir.declarations.IrValueParameter
-import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
+import org.jetbrains.kotlin.ir.symbols.IrValueParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
@@ -20,42 +21,54 @@ import org.jetbrains.kotlin.ir.types.IrType
 internal interface ConstructorCarrier : DeclarationCarrier{
     val returnTypeFieldField: IrType
     val dispatchReceiverParameterField: IrValueParameter?
+    val dispatchReceiverParameterSymbolField: IrValueParameterSymbol?
     val extensionReceiverParameterField: IrValueParameter?
+    val extensionReceiverParameterSymbolField: IrValueParameterSymbol?
     val bodyField: IrBody?
-    val metadataField: MetadataSource?
     val visibilityField: DescriptorVisibility
     val typeParametersField: List<IrTypeParameter>
+    val typeParametersSymbolField: List<IrTypeParameterSymbol>
     val valueParametersField: List<IrValueParameter>
+    val valueParametersSymbolField: List<IrValueParameterSymbol>
 
     override fun clone(): ConstructorCarrier {
         return ConstructorCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
             returnTypeFieldField,
-            dispatchReceiverParameterField,
-            extensionReceiverParameterField,
+            dispatchReceiverParameterSymbolField,
+            extensionReceiverParameterSymbolField,
             bodyField,
-            metadataField,
             visibilityField,
-            typeParametersField,
-            valueParametersField
+            typeParametersSymbolField,
+            valueParametersSymbolField
         )
     }
 }
 
 internal class ConstructorCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
     override val returnTypeFieldField: IrType,
-    override val dispatchReceiverParameterField: IrValueParameter?,
-    override val extensionReceiverParameterField: IrValueParameter?,
+    override val dispatchReceiverParameterSymbolField: IrValueParameterSymbol?,
+    override val extensionReceiverParameterSymbolField: IrValueParameterSymbol?,
     override val bodyField: IrBody?,
-    override val metadataField: MetadataSource?,
     override val visibilityField: DescriptorVisibility,
-    override val typeParametersField: List<IrTypeParameter>,
-    override val valueParametersField: List<IrValueParameter>
-) : ConstructorCarrier
+    override val typeParametersSymbolField: List<IrTypeParameterSymbol>,
+    override val valueParametersSymbolField: List<IrValueParameterSymbol>
+) : ConstructorCarrier {
+
+    override val dispatchReceiverParameterField: IrValueParameter?
+        get() = dispatchReceiverParameterSymbolField?.owner
+
+    override val extensionReceiverParameterField: IrValueParameter?
+        get() = extensionReceiverParameterSymbolField?.owner
+
+    override val typeParametersField: List<IrTypeParameter> by lazy { typeParametersSymbolField.map { it.owner } }
+
+    override val valueParametersField: List<IrValueParameter> by lazy { valueParametersSymbolField.map { it.owner } }
+}

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/EnumEntryCarrier.kt

@@ -7,23 +7,25 @@ package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.expressions.IrExpressionBody
+import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
 
 internal interface EnumEntryCarrier : DeclarationCarrier{
     val correspondingClassField: IrClass?
+    val correspondingClassSymbolField: IrClassSymbol?
     val initializerExpressionField: IrExpressionBody?
 
     override fun clone(): EnumEntryCarrier {
         return EnumEntryCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
-            correspondingClassField,
+            correspondingClassSymbolField,
             initializerExpressionField
         )
     }
@@ -31,9 +33,13 @@ internal interface EnumEntryCarrier : DeclarationCarrier{
 
 internal class EnumEntryCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
-    override val correspondingClassField: IrClass?,
+    override val correspondingClassSymbolField: IrClassSymbol?,
     override val initializerExpressionField: IrExpressionBody?
-) : EnumEntryCarrier
+) : EnumEntryCarrier {
+
+    override val correspondingClassField: IrClass?
+        get() = correspondingClassSymbolField?.owner
+}

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/ErrorDeclarationCarrier.kt

@@ -6,8 +6,8 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
 
@@ -16,7 +16,7 @@ internal interface ErrorDeclarationCarrier : DeclarationCarrier{
     override fun clone(): ErrorDeclarationCarrier {
         return ErrorDeclarationCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField
         )
@@ -25,7 +25,7 @@ internal interface ErrorDeclarationCarrier : DeclarationCarrier{
 
 internal class ErrorDeclarationCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>
 ) : ErrorDeclarationCarrier

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/FieldCarrier.kt

@@ -6,11 +6,10 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
-import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.expressions.IrExpressionBody
 import org.jetbrains.kotlin.ir.symbols.IrPropertySymbol
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
@@ -19,29 +18,26 @@ internal interface FieldCarrier : DeclarationCarrier{
     val typeField: IrType
     val initializerField: IrExpressionBody?
     val correspondingPropertySymbolField: IrPropertySymbol?
-    val metadataField: MetadataSource?
 
     override fun clone(): FieldCarrier {
         return FieldCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
             typeField,
             initializerField,
-            correspondingPropertySymbolField,
-            metadataField
+            correspondingPropertySymbolField
         )
     }
 }
 
 internal class FieldCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
     override val typeField: IrType,
     override val initializerField: IrExpressionBody?,
-    override val correspondingPropertySymbolField: IrPropertySymbol?,
-    override val metadataField: MetadataSource?
+    override val correspondingPropertySymbolField: IrPropertySymbol?
 ) : FieldCarrier

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/FunctionCarrier.kt

@@ -6,16 +6,16 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.descriptors.DescriptorVisibility
-import org.jetbrains.kotlin.ir.declarations.IrAttributeContainer
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
 import org.jetbrains.kotlin.ir.declarations.IrValueParameter
-import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.symbols.IrPropertySymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
+import org.jetbrains.kotlin.ir.symbols.IrValueParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
@@ -23,51 +23,60 @@ import org.jetbrains.kotlin.ir.types.IrType
 internal interface FunctionCarrier : DeclarationCarrier{
     val returnTypeFieldField: IrType
     val dispatchReceiverParameterField: IrValueParameter?
+    val dispatchReceiverParameterSymbolField: IrValueParameterSymbol?
     val extensionReceiverParameterField: IrValueParameter?
+    val extensionReceiverParameterSymbolField: IrValueParameterSymbol?
     val bodyField: IrBody?
-    val metadataField: MetadataSource?
     val visibilityField: DescriptorVisibility
     val typeParametersField: List<IrTypeParameter>
+    val typeParametersSymbolField: List<IrTypeParameterSymbol>
     val valueParametersField: List<IrValueParameter>
+    val valueParametersSymbolField: List<IrValueParameterSymbol>
     val correspondingPropertySymbolField: IrPropertySymbol?
     val overriddenSymbolsField: List<IrSimpleFunctionSymbol>
-    val attributeOwnerIdField: IrAttributeContainer
 
     override fun clone(): FunctionCarrier {
         return FunctionCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
             returnTypeFieldField,
-            dispatchReceiverParameterField,
-            extensionReceiverParameterField,
+            dispatchReceiverParameterSymbolField,
+            extensionReceiverParameterSymbolField,
             bodyField,
-            metadataField,
             visibilityField,
-            typeParametersField,
-            valueParametersField,
+            typeParametersSymbolField,
+            valueParametersSymbolField,
             correspondingPropertySymbolField,
-            overriddenSymbolsField,
-            attributeOwnerIdField
+            overriddenSymbolsField
         )
     }
 }
 
 internal class FunctionCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
     override val returnTypeFieldField: IrType,
-    override val dispatchReceiverParameterField: IrValueParameter?,
-    override val extensionReceiverParameterField: IrValueParameter?,
+    override val dispatchReceiverParameterSymbolField: IrValueParameterSymbol?,
+    override val extensionReceiverParameterSymbolField: IrValueParameterSymbol?,
     override val bodyField: IrBody?,
-    override val metadataField: MetadataSource?,
     override val visibilityField: DescriptorVisibility,
-    override val typeParametersField: List<IrTypeParameter>,
-    override val valueParametersField: List<IrValueParameter>,
+    override val typeParametersSymbolField: List<IrTypeParameterSymbol>,
+    override val valueParametersSymbolField: List<IrValueParameterSymbol>,
     override val correspondingPropertySymbolField: IrPropertySymbol?,
-    override val overriddenSymbolsField: List<IrSimpleFunctionSymbol>,
-    override val attributeOwnerIdField: IrAttributeContainer
-) : FunctionCarrier
+    override val overriddenSymbolsField: List<IrSimpleFunctionSymbol>
+) : FunctionCarrier {
+
+    override val dispatchReceiverParameterField: IrValueParameter?
+        get() = dispatchReceiverParameterSymbolField?.owner
+
+    override val extensionReceiverParameterField: IrValueParameter?
+        get() = extensionReceiverParameterSymbolField?.owner
+
+    override val typeParametersField: List<IrTypeParameter> by lazy { typeParametersSymbolField.map { it.owner } }
+
+    override val valueParametersField: List<IrValueParameter> by lazy { valueParametersSymbolField.map { it.owner } }
+}

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/LocalDelegatedPropertyCarrier.kt

@@ -6,11 +6,11 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
 import org.jetbrains.kotlin.ir.declarations.IrVariable
-import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
@@ -19,32 +19,38 @@ internal interface LocalDelegatedPropertyCarrier : DeclarationCarrier{
     val typeField: IrType
     val delegateField: IrVariable?
     val getterField: IrSimpleFunction?
+    val getterSymbolField: IrSimpleFunctionSymbol?
     val setterField: IrSimpleFunction?
-    val metadataField: MetadataSource?
+    val setterSymbolField: IrSimpleFunctionSymbol?
 
     override fun clone(): LocalDelegatedPropertyCarrier {
         return LocalDelegatedPropertyCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
             typeField,
             delegateField,
-            getterField,
-            setterField,
-            metadataField
+            getterSymbolField,
+            setterSymbolField
         )
     }
 }
 
 internal class LocalDelegatedPropertyCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
     override val typeField: IrType,
     override val delegateField: IrVariable?,
-    override val getterField: IrSimpleFunction?,
-    override val setterField: IrSimpleFunction?,
-    override val metadataField: MetadataSource?
-) : LocalDelegatedPropertyCarrier
+    override val getterSymbolField: IrSimpleFunctionSymbol?,
+    override val setterSymbolField: IrSimpleFunctionSymbol?
+) : LocalDelegatedPropertyCarrier {
+
+    override val getterField: IrSimpleFunction?
+        get() = getterSymbolField?.owner
+
+    override val setterField: IrSimpleFunction?
+        get() = setterSymbolField?.owner
+}

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/PropertyCarrier.kt

@@ -5,46 +5,53 @@
 
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
-import org.jetbrains.kotlin.ir.declarations.IrAttributeContainer
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.declarations.IrField
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
-import org.jetbrains.kotlin.ir.declarations.MetadataSource
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrFieldSymbol
+import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
 
 internal interface PropertyCarrier : DeclarationCarrier{
     val backingFieldField: IrField?
+    val backingFieldSymbolField: IrFieldSymbol?
     val getterField: IrSimpleFunction?
+    val getterSymbolField: IrSimpleFunctionSymbol?
     val setterField: IrSimpleFunction?
-    val metadataField: MetadataSource?
-    val attributeOwnerIdField: IrAttributeContainer
+    val setterSymbolField: IrSimpleFunctionSymbol?
 
     override fun clone(): PropertyCarrier {
         return PropertyCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
-            backingFieldField,
-            getterField,
-            setterField,
-            metadataField,
-            attributeOwnerIdField
+            backingFieldSymbolField,
+            getterSymbolField,
+            setterSymbolField
         )
     }
 }
 
 internal class PropertyCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
-    override val backingFieldField: IrField?,
-    override val getterField: IrSimpleFunction?,
-    override val setterField: IrSimpleFunction?,
-    override val metadataField: MetadataSource?,
-    override val attributeOwnerIdField: IrAttributeContainer
-) : PropertyCarrier
+    override val backingFieldSymbolField: IrFieldSymbol?,
+    override val getterSymbolField: IrSimpleFunctionSymbol?,
+    override val setterSymbolField: IrSimpleFunctionSymbol?
+) : PropertyCarrier {
+
+    override val backingFieldField: IrField?
+        get() = backingFieldSymbolField?.owner
+
+    override val getterField: IrSimpleFunction?
+        get() = getterSymbolField?.owner
+
+    override val setterField: IrSimpleFunction?
+        get() = setterSymbolField?.owner
+}

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/TypeAliasCarrier.kt

@@ -6,24 +6,26 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
 
 internal interface TypeAliasCarrier : DeclarationCarrier{
     val typeParametersField: List<IrTypeParameter>
+    val typeParametersSymbolField: List<IrTypeParameterSymbol>
     val expandedTypeField: IrType
 
     override fun clone(): TypeAliasCarrier {
         return TypeAliasCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
-            typeParametersField,
+            typeParametersSymbolField,
             expandedTypeField
         )
     }
@@ -31,9 +33,12 @@ internal interface TypeAliasCarrier : DeclarationCarrier{
 
 internal class TypeAliasCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
-    override val typeParametersField: List<IrTypeParameter>,
+    override val typeParametersSymbolField: List<IrTypeParameterSymbol>,
     override val expandedTypeField: IrType
-) : TypeAliasCarrier
+) : TypeAliasCarrier {
+
+    override val typeParametersField: List<IrTypeParameter> by lazy { typeParametersSymbolField.map { it.owner } }
+}

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/TypeParameterCarrier.kt

@@ -6,8 +6,8 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
@@ -18,7 +18,7 @@ internal interface TypeParameterCarrier : DeclarationCarrier{
     override fun clone(): TypeParameterCarrier {
         return TypeParameterCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
             superTypesField
@@ -28,7 +28,7 @@ internal interface TypeParameterCarrier : DeclarationCarrier{
 
 internal class TypeParameterCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
     override val superTypesField: List<IrType>

compiler/ir/ir.tree.persistent/gen/org/jetbrains/kotlin/ir/declarations/persistent/carriers/ValueParameterCarrier.kt

@@ -6,9 +6,9 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.expressions.IrExpressionBody
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 
 // Auto-generated by compiler/ir/ir.tree.persistent/generator/src/org/jetbrains/kotlin/ir/persistentIrGenerator/Main.kt. DO NOT EDIT!
@@ -21,7 +21,7 @@ internal interface ValueParameterCarrier : DeclarationCarrier{
     override fun clone(): ValueParameterCarrier {
         return ValueParameterCarrierImpl(
             lastModified,
-            parentField,
+            parentSymbolField,
             originField,
             annotationsField,
             defaultValueField,
@@ -33,7 +33,7 @@ internal interface ValueParameterCarrier : DeclarationCarrier{
 
 internal class ValueParameterCarrierImpl(
     override val lastModified: Int,
-    override val parentField: IrDeclarationParent?,
+    override val parentSymbolField: IrSymbol?,
     override val originField: IrDeclarationOrigin,
     override val annotationsField: List<IrConstructorCall>,
     override val defaultValueField: IrExpressionBody?,

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

@@ -13,6 +13,8 @@ import org.jetbrains.kotlin.ir.declarations.persistent.carriers.Carrier
 import org.jetbrains.kotlin.ir.declarations.persistent.carriers.DeclarationCarrier
 import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.utils.addToStdlib.cast
 
 interface PersistentIrDeclarationBase<T : DeclarationCarrier> : PersistentIrElementBase<T>, IrDeclaration, DeclarationCarrier {
     var removedOn: Int
@@ -20,6 +22,12 @@ interface PersistentIrDeclarationBase<T : DeclarationCarrier> : PersistentIrElem
 
     override var parentField: IrDeclarationParent?
 
+    override var parentSymbolField: IrSymbol?
+        get() = parentField?.let { (it as IrSymbolOwner).symbol }
+        set(v) {
+            parentField = v?.owner?.cast()
+        }
+
     override var originField: IrDeclarationOrigin
 
     override var annotationsField: List<IrConstructorCall>
@@ -135,6 +143,15 @@ interface PersistentIrBodyBase<B : PersistentIrBodyBase<B>> : PersistentIrElemen
 
     override var containerField: IrDeclaration?
 
+    override var containerFieldSymbol: IrSymbol?
+        get() = (containerField as? IrSymbolOwner)?.symbol
+        set(s) {
+            containerField = s?.owner?.cast()
+        }
+
+    val hasContainer: Boolean
+        get() = getCarrier().containerField != null
+
     var container: IrDeclaration
         get() = getCarrier().containerField!!
         set(p) {

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

@@ -6,16 +6,25 @@
 package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.utils.addToStdlib.cast
 
 interface BodyCarrier : Carrier {
+    var containerFieldSymbol: IrSymbol?
+
     var containerField: IrDeclaration?
+        get() = containerFieldSymbol?.owner?.cast()
+        set(v) {
+            containerFieldSymbol = v?.symbol
+        }
+
 
     override fun clone(): BodyCarrier {
-        return BodyCarrierImpl(lastModified, containerField)
+        return BodyCarrierImpl(lastModified, containerFieldSymbol)
     }
 }
 
 internal class BodyCarrierImpl(
     override val lastModified: Int,
-    override var containerField: IrDeclaration?
+    override var containerFieldSymbol: IrSymbol?
 ) : BodyCarrier

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

@@ -7,10 +7,18 @@ package org.jetbrains.kotlin.ir.declarations.persistent.carriers
 
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
+import org.jetbrains.kotlin.ir.declarations.IrSymbolOwner
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
+import org.jetbrains.kotlin.utils.addToStdlib.cast
 
 interface DeclarationCarrier : Carrier {
+    val parentSymbolField: IrSymbol?
+        get() = parentField?.cast<IrSymbolOwner>()?.symbol
+
     val parentField: IrDeclarationParent?
+        get() = parentSymbolField?.owner?.cast()
+
     val originField: IrDeclarationOrigin
     val annotationsField: List<IrConstructorCall>
 }