[FIR] Use tower to resolve delegated constructors, set dispatch receiver

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/FirDelegatedConstructorCall.kt

@@ -22,6 +22,7 @@ abstract class FirDelegatedConstructorCall : FirPureAbstractElement(), FirResolv
     abstract override val annotations: List<FirAnnotationCall>
     abstract override val argumentList: FirArgumentList
     abstract val constructedTypeRef: FirTypeRef
+    abstract val dispatchReceiver: FirExpression
     abstract val isThis: Boolean
     abstract val isSuper: Boolean
 
@@ -36,4 +37,6 @@ abstract class FirDelegatedConstructorCall : FirPureAbstractElement(), FirResolv
     abstract override fun <D> transformCalleeReference(transformer: FirTransformer<D>, data: D): FirDelegatedConstructorCall
 
     abstract override fun <D> transformAnnotations(transformer: FirTransformer<D>, data: D): FirDelegatedConstructorCall
+
+    abstract fun <D> transformDispatchReceiver(transformer: FirTransformer<D>, data: D): FirDelegatedConstructorCall
 }

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirDelegatedConstructorCallBuilder.kt

@@ -13,8 +13,10 @@ import org.jetbrains.kotlin.fir.expressions.FirAnnotationCall
 import org.jetbrains.kotlin.fir.expressions.FirArgumentList
 import org.jetbrains.kotlin.fir.expressions.FirDelegatedConstructorCall
 import org.jetbrains.kotlin.fir.expressions.FirEmptyArgumentList
+import org.jetbrains.kotlin.fir.expressions.FirExpression
 import org.jetbrains.kotlin.fir.expressions.builder.FirCallBuilder
 import org.jetbrains.kotlin.fir.expressions.impl.FirDelegatedConstructorCallImpl
+import org.jetbrains.kotlin.fir.expressions.impl.FirNoReceiverExpression
 import org.jetbrains.kotlin.fir.references.FirReference
 import org.jetbrains.kotlin.fir.references.impl.FirExplicitSuperReference
 import org.jetbrains.kotlin.fir.references.impl.FirExplicitThisReference
@@ -32,6 +34,7 @@ class FirDelegatedConstructorCallBuilder : FirCallBuilder, FirAnnotationContaine
     override val annotations: MutableList<FirAnnotationCall> = mutableListOf()
     override var argumentList: FirArgumentList = FirEmptyArgumentList
     lateinit var constructedTypeRef: FirTypeRef
+    var dispatchReceiver: FirExpression = FirNoReceiverExpression
     var isThis: Boolean by kotlin.properties.Delegates.notNull<Boolean>()
 
     override fun build(): FirDelegatedConstructorCall {
@@ -40,6 +43,7 @@ class FirDelegatedConstructorCallBuilder : FirCallBuilder, FirAnnotationContaine
             annotations,
             argumentList,
             constructedTypeRef,
+            dispatchReceiver,
             isThis,
         )
     }

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/impl/FirDelegatedConstructorCallImpl.kt

@@ -9,6 +9,7 @@ import org.jetbrains.kotlin.fir.FirSourceElement
 import org.jetbrains.kotlin.fir.expressions.FirAnnotationCall
 import org.jetbrains.kotlin.fir.expressions.FirArgumentList
 import org.jetbrains.kotlin.fir.expressions.FirDelegatedConstructorCall
+import org.jetbrains.kotlin.fir.expressions.FirExpression
 import org.jetbrains.kotlin.fir.references.FirReference
 import org.jetbrains.kotlin.fir.references.impl.FirExplicitSuperReference
 import org.jetbrains.kotlin.fir.references.impl.FirExplicitThisReference
@@ -25,6 +26,7 @@ internal class FirDelegatedConstructorCallImpl(
     override val annotations: MutableList<FirAnnotationCall>,
     override var argumentList: FirArgumentList,
     override var constructedTypeRef: FirTypeRef,
+    override var dispatchReceiver: FirExpression,
     override val isThis: Boolean,
 ) : FirDelegatedConstructorCall() {
     override var calleeReference: FirReference = if (isThis) FirExplicitThisReference(source, null) else FirExplicitSuperReference(source, null, constructedTypeRef)
@@ -55,6 +57,11 @@ internal class FirDelegatedConstructorCallImpl(
         return this
     }
 
+    override fun <D> transformDispatchReceiver(transformer: FirTransformer<D>, data: D): FirDelegatedConstructorCallImpl {
+        dispatchReceiver = dispatchReceiver.transformSingle(transformer, data)
+        return this
+    }
+
     override fun replaceCalleeReference(newCalleeReference: FirReference) {
         calleeReference = newCalleeReference
     }

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -763,6 +763,11 @@ class FirRenderer(builder: StringBuilder, private val mode: RenderMode = RenderM
     }
 
     override fun visitDelegatedConstructorCall(delegatedConstructorCall: FirDelegatedConstructorCall) {
+        val dispatchReceiver = delegatedConstructorCall.dispatchReceiver
+        if (dispatchReceiver !is FirNoReceiverExpression) {
+            dispatchReceiver.accept(this)
+            print(".")
+        }
         if (delegatedConstructorCall.isSuper) {
             print("super<")
         } else if (delegatedConstructorCall.isThis) {

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

@@ -152,6 +152,8 @@ object BuilderConfigurator : AbstractBuilderConfigurator<FirTreeBuilder>(FirTree
             default("argumentList") {
                 value = "FirEmptyArgumentList"
             }
+            default("dispatchReceiver", "FirNoReceiverExpression")
+            useTypes(noReceiverExpressionType)
             useTypes(emptyArgumentListType)
         }
 

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

@@ -348,6 +348,7 @@ object NodeConfigurator : AbstractFieldConfigurator<FirTreeBuilder>(FirTreeBuild
 
         delegatedConstructorCall.configure {
             +field("constructedTypeRef", typeRef, withReplace = true)
+            +field("dispatchReceiver", expression).withTransform()
             generateBooleanFields("this", "super")
         }