IrDelegatingConstructorCall should have substituted descriptor

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/BodyGenerator.kt

@@ -239,6 +239,7 @@ class BodyGenerator(
                 IrDelegatingConstructorCallImpl(
                         ktElement.startOffset, ktElement.endOffset,
                         context.symbolTable.referenceConstructor(anyConstructor),
+                        anyConstructor,
                         null
                 )
         )

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/CallGenerator.kt

@@ -103,7 +103,7 @@ class CallGenerator(statementGenerator: StatementGenerator): StatementGeneratorE
                 val descriptor = call.descriptor as? ClassConstructorDescriptor
                                  ?: throw AssertionError("Class constructor expected: ${call.descriptor}")
                 val constructorSymbol = context.symbolTable.referenceConstructor(descriptor.original)
-                val irCall = IrDelegatingConstructorCallImpl(startOffset, endOffset, constructorSymbol, getTypeArguments(call.original))
+                val irCall = IrDelegatingConstructorCallImpl(startOffset, endOffset, constructorSymbol, descriptor, getTypeArguments(call.original))
                 irCall.dispatchReceiver = dispatchReceiver?.load()
                 irCall.extensionReceiver = extensionReceiver?.load()
                 addParametersToCall(startOffset, endOffset, call, irCall, descriptor.builtIns.unitType)

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrDelegatingConstructorCallImpl.kt

@@ -29,6 +29,7 @@ class IrDelegatingConstructorCallImpl(
         startOffset: Int,
         endOffset: Int,
         override val symbol: IrConstructorSymbol,
+        override val descriptor: ClassConstructorDescriptor,
         typeArguments: Map<TypeParameterDescriptor, KotlinType>? = null
 ) : IrDelegatingConstructorCall,
         IrCallWithIndexedArgumentsBase(
@@ -46,10 +47,9 @@ class IrDelegatingConstructorCallImpl(
             typeArguments: Map<TypeParameterDescriptor, KotlinType>? = null
     ) : this(startOffset, endOffset,
              IrConstructorSymbolImpl(constructorDescriptor),
+             constructorDescriptor,
              typeArguments)
 
-    override val descriptor: ClassConstructorDescriptor get() = symbol.descriptor
-
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R {
         return visitor.visitDelegatingConstructorCall(this, data)
     }

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/DeepCopyIrTree.kt

@@ -356,6 +356,7 @@ class DeepCopyIrTree(private val symbolsRemapper: DeepCopySymbolsRemapper) : IrE
             IrDelegatingConstructorCallImpl(
                     expression.startOffset, expression.endOffset,
                     symbolsRemapper.getReferencedConstructor(expression.symbol),
+                    expression.descriptor,
                     expression.getTypeArgumentsMap()
             ).transformValueArguments(expression)
 

compiler/testData/ir/irText/regressions/typeAliasCtorForGenericClass.txt

@@ -1,6 +1,9 @@
 FILE /typeAliasCtorForGenericClass.kt
   CLASS CLASS A
+    $new: VALUE_PARAMETER this@A: A<Q>
+    TYPE_PARAMETER <Q>
     CONSTRUCTOR public constructor A<Q>(q: Q)
+      VALUE_PARAMETER value-parameter q: Q
       BLOCK_BODY
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='A'
@@ -9,10 +12,14 @@ FILE /typeAliasCtorForGenericClass.kt
         EXPRESSION_BODY
           GET_VAR 'value-parameter q: Q' type=Q origin=INITIALIZE_PROPERTY_FROM_PARAMETER
       FUN DEFAULT_PROPERTY_ACCESSOR public final fun <get-q>(): Q
+        $this: VALUE_PARAMETER this@A: A<Q>
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-q>(): Q'
             GET_FIELD 'q: Q' type=Q origin=null
-              receiver: GET_VAR '<receiver: A>' type=A<Q> origin=null
+              receiver: GET_VAR 'this@A: A<Q>' type=A<Q> origin=null
+    FUN FAKE_OVERRIDE public open override fun equals(other: kotlin.Any?): kotlin.Boolean
+    FUN FAKE_OVERRIDE public open override fun hashCode(): kotlin.Int
+    FUN FAKE_OVERRIDE public open override fun toString(): kotlin.String
   TYPEALIAS typealias B = A<X> type=A<X>
   TYPEALIAS typealias B2 = A<A<T>> type=A<A<T>>
   FUN public fun bar(): kotlin.Unit