fixup! [Tests][JS] Avoid crash in JsIrIniningFacade

compiler/test-infrastructure/tests/org/jetbrains/kotlin/test/TestRunner.kt

diff --git a/compiler/test-infrastructure/tests/org/jetbrains/kotlin/test/TestRunner.kt b/compiler/test-infrastructure/tests/org/jetbrains/kotlin/test/TestRunner.kt
index c12db38..77566a8 100644
--- a/compiler/test-infrastructure/tests/org/jetbrains/kotlin/test/TestRunner.kt
+++ b/compiler/test-infrastructure/tests/org/jetbrains/kotlin/test/TestRunner.kt
@@ -62,8 +62,6 @@
             throw exception
         }
 
-        if (shouldSkipK1TestDueToEnabledUnsupportedFeature(moduleStructure)) return
-
         testConfiguration.metaTestConfigurators.forEach {
             if (it.shouldSkipTest()) return
         }
@@ -206,17 +204,4 @@
         @Suppress("UNCHECKED_CAST")
         return processModule(module, artifact as I, thereWereExceptionsOnPreviousSteps)
     }
-
-    // Skip test for K1 in case it explicitly enables any post-K1 or unstable language features
-    fun shouldSkipK1TestDueToEnabledUnsupportedFeature(moduleStructure: TestModuleStructure): Boolean {
-        moduleStructure.modules.first().languageVersionSettings.let {
-            if (it.languageVersion.major == 1) {
-                it.getManuallyEnabledLanguageFeatures().forEach { feature ->
-                    if (feature.sinceVersion?.major == 2 || feature.kind == LanguageFeature.Kind.UNSTABLE_FEATURE)
-                        return true
-                }
-            }
-        }
-        return false
-    }
 }

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/classic/handlers/ClassicUnstableAndK2LanguageFeaturesSkipConfigurator.kt

diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/classic/handlers/ClassicUnstableAndK2LanguageFeaturesSkipConfigurator.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/classic/handlers/ClassicUnstableAndK2LanguageFeaturesSkipConfigurator.kt
new file mode 100644
index 0000000..90ca2e4
--- /dev/null
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/classic/handlers/ClassicUnstableAndK2LanguageFeaturesSkipConfigurator.kt
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2010-2025 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.test.frontend.classic.handlers
+
+import org.jetbrains.kotlin.config.LanguageFeature
+import org.jetbrains.kotlin.test.services.MetaTestConfigurator
+import org.jetbrains.kotlin.test.services.TestServices
+import org.jetbrains.kotlin.test.services.moduleStructure
+
+// Skip test for K1 in case it explicitly enables any language feature which either has `sinceVersion` equal to 2.*, or is unstable.
+class ClassicUnstableAndK2LanguageFeaturesSkipConfigurator(testServices: TestServices) : MetaTestConfigurator(testServices) {
+    override fun shouldSkipTest(): Boolean {
+        testServices.moduleStructure.modules.first().languageVersionSettings.let {
+            if (it.languageVersion.major == 1) {
+                it.getManuallyEnabledLanguageFeatures().forEach { feature ->
+                    if (feature.sinceVersion?.major == 2 || feature.kind == LanguageFeature.Kind.UNSTABLE_FEATURE)
+                        return true
+                }
+            }
+        }
+        return false
+    }
+}

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/AbstractKotlinCompilerTest.kt

diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/AbstractKotlinCompilerTest.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/AbstractKotlinCompilerTest.kt
index 012d79c..db7979b 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/AbstractKotlinCompilerTest.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/AbstractKotlinCompilerTest.kt
@@ -14,6 +14,7 @@
 import org.jetbrains.kotlin.test.builders.testRunner
 import org.jetbrains.kotlin.test.directives.ConfigurationDirectives
 import org.jetbrains.kotlin.test.directives.LanguageSettingsDirectives
+import org.jetbrains.kotlin.test.frontend.classic.handlers.ClassicUnstableAndK2LanguageFeaturesSkipConfigurator
 import org.jetbrains.kotlin.test.model.ResultingArtifact
 import org.jetbrains.kotlin.test.model.TestFile
 import org.jetbrains.kotlin.test.preprocessors.MetaInfosCleanupPreprocessor
@@ -48,7 +49,7 @@
             useAdditionalService<TargetPlatformProvider>(::TargetPlatformProviderForCompilerTests)
             useSourcePreprocessor(*defaultPreprocessors.toTypedArray())
             useDirectives(*defaultDirectiveContainers.toTypedArray())
-            useMetaTestConfigurators(::SystemPropertyTestDataRootConfigurator)
+            useMetaTestConfigurators(::SystemPropertyTestDataRootConfigurator, ::ClassicUnstableAndK2LanguageFeaturesSkipConfigurator)
             configureDebugFlags()
             startingArtifactFactory = { ResultingArtifact.Source() }
         }