IR: make IrComposite.isTransparentScope an extension

compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/expressions/IrBlock.kt

@@ -15,9 +15,6 @@ import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
  * @sample org.jetbrains.kotlin.ir.generator.IrTree.block
  */
 abstract class IrBlock : IrContainerExpression() {
-    override val isTransparentScope: Boolean
-        get() = false
-
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R =
         visitor.visitBlock(this, data)
 }

compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/expressions/IrComposite.kt

@@ -15,9 +15,6 @@ import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
  * @sample org.jetbrains.kotlin.ir.generator.IrTree.composite
  */
 abstract class IrComposite : IrContainerExpression() {
-    override val isTransparentScope: Boolean
-        get() = true
-
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R =
         visitor.visitComposite(this, data)
 }

compiler/ir/ir.tree/gen/org/jetbrains/kotlin/ir/expressions/IrContainerExpression.kt

@@ -20,8 +20,6 @@ import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
 abstract class IrContainerExpression : IrExpression(), IrStatementContainer {
     abstract val origin: IrStatementOrigin?
 
-    abstract val isTransparentScope: Boolean
-
     override val statements: MutableList<IrStatement> = ArrayList(2)
 
     override fun <D> acceptChildren(visitor: IrElementVisitor<Unit, D>, data: D) {

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/IrExpressions.kt

@@ -48,3 +48,6 @@ fun IrVararg.addElement(varargElement: IrVarargElement) {
 fun IrStringConcatenation.addArgument(argument: IrExpression) {
     arguments.add(argument)
 }
+
+val IrContainerExpression.isTransparentScope: Boolean
+    get() = this is IrComposite

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

@@ -618,7 +618,6 @@ object IrTree : AbstractTreeBuilder() {
         parent(statementContainer)
 
         +field("origin", statementOriginType, nullable = true)
-        +field("isTransparentScope", boolean)
         +listField("statements", statement, mutability = List, isChild = true) {
             generationCallback = {
                 addModifiers(KModifier.OVERRIDE)
@@ -631,19 +630,11 @@ object IrTree : AbstractTreeBuilder() {
         accept = true
 
         parent(containerExpression)
-
-        +field("isTransparentScope", boolean) {
-            baseGetter = code("false")
-        }
     }
     val composite: ElementConfig by element(Expression) {
         visitorParent = containerExpression
 
         parent(containerExpression)
-
-        +field("isTransparentScope", boolean) {
-            baseGetter = code("true")
-        }
     }
     val returnableBlock: ElementConfig by element(Expression) {
         parent(block)