From 861f69822b036cb39296ae98aed1caeae342dc19 Mon Sep 17 00:00:00 2001
From: Dmitriy Novozhilov <dmitriy.novozhilov@jetbrains.com>
Date: Wed, 14 Apr 2021 14:21:36 +0300
Subject: [PATCH] [FIR] Fix infinite recursion of ConeDefinitelyNotNullType

---
 .../jetbrains/kotlin/fir/serialization/FirElementSerializer.kt  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt b/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt
index 252c4c1b868..d6fe65b626f 100644
--- a/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt
+++ b/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt
@@ -607,7 +607,7 @@ class FirElementSerializer private constructor(
         val builder = ProtoBuf.Type.newBuilder()
 
         when (type) {
-            is ConeDefinitelyNotNullType -> return typeProto(type, toSuper, correspondingTypeRef, isDefinitelyNotNullType = true)
+            is ConeDefinitelyNotNullType -> return typeProto(type.original, toSuper, correspondingTypeRef, isDefinitelyNotNullType = true)
             is ConeKotlinErrorType -> {
                 extension.serializeErrorType(type, builder)
                 return builder