kotlin 2.1.0 seems to work!

Author: Jolanrensen

core/api/core.api

@@ -6481,8 +6481,6 @@ public final class org/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords : j
 	public static final field EXTERNAL Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
 	public static final field FINAL Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
 	public static final field FUN Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
-	public static final field HEADER Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
-	public static final field IMPL Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
 	public static final field IN Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
 	public static final field INFIX Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
 	public static final field INLINE Lorg/jetbrains/kotlinx/dataframe/keywords/ModifierKeywords;
@@ -6536,8 +6534,6 @@ public final class org/jetbrains/kotlinx/dataframe/keywords/SoftKeywords : java/
 	public static final field FINAL Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;
 	public static final field FINALLY Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;
 	public static final field GET Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;
-	public static final field HEADER Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;
-	public static final field IMPL Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;
 	public static final field IMPORT Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;
 	public static final field INFIX Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;
 	public static final field INIT Lorg/jetbrains/kotlinx/dataframe/keywords/SoftKeywords;

plugins/expressions-converter/tests/org/jetbrains/kotlinx/dataframe/AbstractExplainerBlackBoxCodegenTest.kt

@@ -32,44 +32,43 @@ import java.io.File
 
 open class AbstractExplainerBlackBoxCodegenTest : BaseTestRunner() {
 
-    override fun configure(builder: TestConfigurationBuilder) =
-        with(builder) {
-            globalDefaults {
-                frontend = FrontendKinds.ClassicAndFIR
-                targetPlatform = JvmPlatforms.jvm8
-                dependencyKind = DependencyKind.Binary
-                targetBackend = TargetBackend.JVM_IR
-            }
-            defaultDirectives {
-                JvmEnvironmentConfigurationDirectives.JDK_KIND with TestJdkKind.FULL_JDK
-                JvmEnvironmentConfigurationDirectives.JVM_TARGET with JvmTarget.JVM_1_8
-                +JvmEnvironmentConfigurationDirectives.WITH_REFLECT
-            }
-            facadeStep(::ClassicFrontendFacade)
-            commonFirWithPluginFrontendConfiguration()
-            classicFrontendHandlersStep {
-                useHandlers(
-                    ::ClassicDiagnosticsHandler,
-                    ::DeclarationsDumpHandler,
-                )
-            }
-            psi2IrStep()
-            irHandlersStep {
-                useHandlers(
-                    ::IrPrettyKotlinDumpHandler,
-                    ::IrTextDumpHandler,
-                    ::IrTreeVerifierHandler,
-                )
-            }
-            facadeStep(::JvmIrBackendFacade)
-            jvmArtifactsHandlersStep {
-                useHandlers(::JvmBoxRunner)
-            }
-            useConfigurators(::JvmEnvironmentConfigurator, ::CommonEnvironmentConfigurator, ::PluginAnnotationsProvider)
-            useCustomRuntimeClasspathProviders(::MyClasspathProvider)
-            useAfterAnalysisCheckers(::BlackBoxCodegenSuppressor)
-            useAdditionalService<TemporaryDirectoryManager>(::TemporaryDirectoryManagerImplFixed)
+    override fun TestConfigurationBuilder.configuration() {
+        globalDefaults {
+            frontend = FrontendKinds.ClassicAndFIR
+            targetPlatform = JvmPlatforms.jvm8
+            dependencyKind = DependencyKind.Binary
+            targetBackend = TargetBackend.JVM_IR
         }
+        defaultDirectives {
+            JvmEnvironmentConfigurationDirectives.JDK_KIND with TestJdkKind.FULL_JDK
+            JvmEnvironmentConfigurationDirectives.JVM_TARGET with JvmTarget.JVM_1_8
+            +JvmEnvironmentConfigurationDirectives.WITH_REFLECT
+        }
+        facadeStep(::ClassicFrontendFacade)
+        commonFirWithPluginFrontendConfiguration()
+        classicFrontendHandlersStep {
+            useHandlers(
+                ::ClassicDiagnosticsHandler,
+                ::DeclarationsDumpHandler,
+            )
+        }
+        psi2IrStep()
+        irHandlersStep {
+            useHandlers(
+                ::IrPrettyKotlinDumpHandler,
+                ::IrTextDumpHandler,
+                ::IrTreeVerifierHandler,
+            )
+        }
+        facadeStep(::JvmIrBackendFacade)
+        jvmArtifactsHandlersStep {
+            useHandlers(::JvmBoxRunner)
+        }
+        useConfigurators(::JvmEnvironmentConfigurator, ::CommonEnvironmentConfigurator, ::PluginAnnotationsProvider)
+        useCustomRuntimeClasspathProviders(::MyClasspathProvider)
+        useAfterAnalysisCheckers(::BlackBoxCodegenSuppressor)
+        useAdditionalService<TemporaryDirectoryManager>(::TemporaryDirectoryManagerImplFixed)
+    }
 
     class MyClasspathProvider(testServices: TestServices) : RuntimeClasspathProvider(testServices) {
         override fun runtimeClassPaths(module: TestModule): List<File> =