From 18cc498763990c22137356a78a5dd49c0c232815 Mon Sep 17 00:00:00 2001
From: Mikhail Glukhikh <mikhail.glukhikh@jetbrains.com>
Date: Tue, 24 Aug 2021 09:49:44 +0300
Subject: [PATCH] Fix deprecated smart casts in sources (around KT-48101)

---
 .../kotlin/gradle/targets/js/ir/KotlinJsIrCompilation.kt       | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrCompilation.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrCompilation.kt
index 20eb5243a1a..e05e1d08769 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrCompilation.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrCompilation.kt
@@ -31,8 +31,9 @@ class KotlinJsIrCompilation(
 
     override val defaultSourceSetName: String
         get() {
+            val target = target as KotlinJsIrTarget
             return lowerCamelCaseName(
-                if ((target as KotlinJsIrTarget).mixedMode)
+                if (target.mixedMode)
                     target.disambiguationClassifierInPlatform
                 else
                     target.disambiguationClassifier,