From eccbf380610ef923b3cfd47601f802aab969bd44 Mon Sep 17 00:00:00 2001
From: Georgy Bronnikov <georgy.bronnikov@jetbrains.com>
Date: Wed, 21 Jul 2021 23:19:23 +0300
Subject: [PATCH] IR: use existing type parameters when deserializing IR

---
 .../kotlin/ir/declarations/lazy/LazyIrFactory.kt  | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/LazyIrFactory.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/LazyIrFactory.kt
index de40e626424..148cf3777c1 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/LazyIrFactory.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/LazyIrFactory.kt
@@ -14,6 +14,7 @@ import org.jetbrains.kotlin.ir.symbols.*
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedContainerSource
+import org.jetbrains.kotlin.types.Variance
 
 // An IrFactory that does not recreate declarations for already bound symbols.
 class LazyIrFactory(
@@ -155,4 +156,18 @@ class LazyIrFactory(
         symbol.owner
     else
         delegate.createTypeAlias(startOffset, endOffset, symbol, name, visibility, expandedType, isActual, origin)
+
+    override fun createTypeParameter(
+        startOffset: Int,
+        endOffset: Int,
+        origin: IrDeclarationOrigin,
+        symbol: IrTypeParameterSymbol,
+        name: Name,
+        index: Int,
+        isReified: Boolean,
+        variance: Variance
+    ): IrTypeParameter = if (symbol.isBound)
+        symbol.owner
+    else
+        delegate.createTypeParameter(startOffset, endOffset, origin, symbol, name, index, isReified, variance)
 }
\ No newline at end of file