[IR generator] Deduplicate field copying logic

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/model/Field.kt

@@ -43,21 +43,15 @@ sealed class Field : AbstractField<Field>() {
         updateFieldsInCopy(it)
     }
 
-    protected fun updateFieldsInCopy(copy: Field) {
+    override fun updateFieldsInCopy(copy: Field) {
+        super.updateFieldsInCopy(copy)
         if (copy !is FieldWithDefault) {
             copy.needsSeparateTransform = needsSeparateTransform
             copy.needTransformInOtherChildren = needTransformInOtherChildren
-            copy.useInBaseTransformerDetection = useInBaseTransformerDetection
-            copy.isMutable = isMutable
-            copy.overriddenTypes += overriddenTypes
-            copy.arbitraryImportables += arbitraryImportables
             copy.useNullableForReplace = useNullableForReplace
             copy.customInitializationCall = customInitializationCall
-            copy.optInAnnotation = optInAnnotation
         }
-        copy.fromParent = fromParent
         copy.parentHasSeparateTransform = parentHasSeparateTransform
-        copy.kDoc = kDoc
     }
 
     protected abstract fun internalCopy(): Field

compiler/ir/ir.tree/tree-generator/src/org/jetbrains/kotlin/ir/generator/model/Model.kt

@@ -187,19 +187,12 @@ sealed class Field(
 
     override fun copy() = internalCopy().also(::updateFieldsInCopy)
 
-    protected fun updateFieldsInCopy(copy: Field) {
-        copy.needAcceptAndTransform = needAcceptAndTransform
-        copy.useInBaseTransformerDetection = useInBaseTransformerDetection
-        copy.isMutable = isMutable
-        copy.optInAnnotation = optInAnnotation
+    override fun updateFieldsInCopy(copy: Field) {
+        super.updateFieldsInCopy(copy)
         copy.baseDefaultValue = baseDefaultValue
         copy.baseGetter = baseGetter
         copy.customUseInIrFactoryStrategy = customUseInIrFactoryStrategy
-        copy.fromParent = fromParent
         copy.customSetter = customSetter
-        copy.visibility = visibility
-        copy.deprecation = deprecation
-        copy.kDoc = kDoc
     }
 
     protected abstract fun internalCopy(): Field

generators/tree-generator-common/src/org/jetbrains/kotlin/generators/tree/AbstractField.kt

@@ -87,4 +87,17 @@ abstract class AbstractField<Field : AbstractField<Field>> {
      * Returns a copy of this field.
      */
     abstract fun copy(): Field
+
+    protected open fun updateFieldsInCopy(copy: Field) {
+        copy.kDoc = kDoc
+        copy.arbitraryImportables += arbitraryImportables
+        copy.optInAnnotation = optInAnnotation
+        copy.isMutable = isMutable
+        copy.deprecation = deprecation
+        copy.visibility = visibility
+        copy.fromParent = fromParent
+        copy.useInBaseTransformerDetection = useInBaseTransformerDetection
+        copy.needAcceptAndTransform = needAcceptAndTransform
+        copy.overriddenTypes += overriddenTypes
+    }
 }