diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTarget.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTarget.kt
index ba83c0ccafd..baac189ee87 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTarget.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTarget.kt
@@ -23,7 +23,6 @@ import org.jetbrains.kotlin.gradle.targets.js.dsl.KotlinJsSubTargetContainerDsl
 import org.jetbrains.kotlin.gradle.targets.js.dsl.KotlinJsTargetDsl
 import org.jetbrains.kotlin.gradle.tasks.Kotlin2JsCompile
 import org.jetbrains.kotlin.gradle.utils.lowerCamelCaseName
-import org.jetbrains.kotlin.gradle.utils.matchingIsInstance
 import javax.inject.Inject
 
 open class KotlinJsIrTarget
@@ -127,7 +126,7 @@ constructor(
             it.compileKotlinTask.configureCommonJsOptions()
 
             binaries
-                .matchingIsInstance<JsIrBinary>()
+                .withType(JsIrBinary::class.java)
                 .all {
                     it.linkTask.configure { linkTask ->
                         linkTask.configureCommonJsOptions()
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTargetConfigurator.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTargetConfigurator.kt
index 2e38ac6dff0..26bd552d7cd 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTargetConfigurator.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTargetConfigurator.kt
@@ -15,7 +15,6 @@ import org.jetbrains.kotlin.gradle.targets.js.KotlinJsReportAggregatingTestRun
 import org.jetbrains.kotlin.gradle.tasks.KotlinTasksProvider
 import org.jetbrains.kotlin.gradle.testing.internal.kotlinTestRegistry
 import org.jetbrains.kotlin.gradle.testing.testTaskName
-import org.jetbrains.kotlin.gradle.utils.matchingIsInstance
 
 open class KotlinJsIrTargetConfigurator(kotlinPluginVersion: String) :
     KotlinOnlyTargetConfigurator<KotlinJsIrCompilation, KotlinJsIrTarget>(true, true, kotlinPluginVersion),
@@ -75,7 +74,7 @@ open class KotlinJsIrTargetConfigurator(kotlinPluginVersion: String) :
             }
 
             it.binaries
-                .matchingIsInstance<JsIrBinary>()
+                .withType(JsIrBinary::class.java)
                 .all {
                     it.linkTask.configure { linkTask ->
                         linkTask.kotlinOptions.configureOptions()
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/utils/DomainObjectSets.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/utils/DomainObjectSets.kt
deleted file mode 100644
index eddb73d7705..00000000000
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/utils/DomainObjectSets.kt
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.gradle.utils
-
-import org.gradle.api.DomainObjectSet
-
-inline fun <reified R> DomainObjectSet<*>.matchingIsInstance(): DomainObjectSet<R> {
-    return matching {
-        it is R
-    } as DomainObjectSet<R>
-}
\ No newline at end of file