IR: make IrTypeParameter.superTypes persistent mutable field

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

@@ -62,5 +62,13 @@ internal class PersistentIrTypeParameter(
     override val descriptor: TypeParameterDescriptor
         get() = symbol.descriptor
 
-    override val superTypes: MutableList<IrType> = SmartList()
+    override var superTypesField: List<IrType> = emptyList()
+
+    override var superTypes: List<IrType>
+        get() = getCarrier().superTypesField
+        set(v) {
+            if (superTypes !== v) {
+                setCarrier().superTypesField = v
+            }
+        }
 }

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

@@ -8,10 +8,13 @@ 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.types.IrType
 
 internal interface TypeParameterCarrier : DeclarationCarrier {
+    var superTypesField: List<IrType>
+
     override fun clone(): TypeParameterCarrier {
-        return TypeParameterCarrierImpl(lastModified, parentField, originField, annotationsField)
+        return TypeParameterCarrierImpl(lastModified, parentField, originField, annotationsField, superTypesField)
     }
 }
 
@@ -19,5 +22,6 @@ internal class TypeParameterCarrierImpl(
     override val lastModified: Int,
     override var parentField: IrDeclarationParent?,
     override var originField: IrDeclarationOrigin,
-    override var annotationsField: List<IrConstructorCall>
+    override var annotationsField: List<IrConstructorCall>,
+    override var superTypesField: List<IrType>,
 ) : TypeParameterCarrier