[Tests][JS] Add splitting testrunners for stepping tests

^KT-78930

Author: vsukharev

compiler/testData/debug/stepping/functionInAnotherFile.kt

@@ -1,4 +1,4 @@
-
+// IGNORE_BACKEND_K2_MULTI_MODULE: ANY
 // FILE: foo.kt
 import bar
 fun foo(x: Int): Int {

compiler/testData/debug/stepping/kt42208.kt

@@ -1,5 +1,5 @@
-
-
+// IGNORE_BACKEND_K2_MULTI_MODULE: JS_IR
+// ^^^ KT-80626: Wrong source file for debuginfo in splitted stepping tests
 // FILE: test.kt
 
 fun box() {
@@ -21,7 +21,7 @@ inline fun foo() = {
 
 // EXPECTATIONS JS_IR
 // test1.kt:10 box
-// test1.kt:8 box$lambda
+// test.kt:2 box$lambda
 // test.kt:7 box
 
 // EXPECTATIONS WASM

compiler/testData/debug/stepping/kt42208b.kt

@@ -1,5 +1,5 @@
-
-
+// IGNORE_BACKEND_K2_MULTI_MODULE: JS_IR
+// ^^^ KT-80626: Wrong source file for debuginfo in splitted stepping tests
 // FILE: test.kt
 
 fun box() {
@@ -24,7 +24,7 @@ inline fun foo() = {
 // EXPECTATIONS JS_IR
 // test1.kt:11 box
 // test.kt:7 box
-// test1.kt:9 box$lambda
+// test.kt:2 box$lambda
 // test.kt:8 box
 
 // EXPECTATIONS WASM

compiler/testData/debug/stepping/kt42208c.kt

@@ -1,5 +1,5 @@
-
-
+// IGNORE_BACKEND_K2_MULTI_MODULE: JS_IR
+// ^^^ KT-80626: Wrong source file for debuginfo in splitted stepping tests
 // FILE: test.kt
 
 fun box() {
@@ -40,12 +40,12 @@ fun baz(v:(() -> Unit)) {
 // test1.kt:12 box
 // test.kt:6 box
 // test3.kt:16 baz
-// test1.kt:10 box$lambda
+// test.kt:2 box$lambda
 // test3.kt:17 baz
 // test1.kt:12 box
 // test.kt:8 box
 // test3.kt:16 baz
-// test1.kt:10 box$lambda
+// test.kt:2 box$lambda
 // test3.kt:17 baz
 // test.kt:9 box
 

compiler/testData/debug/stepping/nestedInline.kt

@@ -1,7 +1,7 @@
-
+// IGNORE_BACKEND_K2_MULTI_MODULE: JS_IR
+// ^^^ KT-80626: Wrong source file for debuginfo in splitted stepping tests
 // This is same as kotlin/compiler/testData/codegen/boxInline/smap/smap.kt
 // FILE: test.kt
-
 import builders.*
 
 inline fun test(): String {

js/js.tests/testFixtures/org/jetbrains/kotlin/generators/tests/GenerateJsTests.kt

@@ -260,6 +260,14 @@ fun main(args: Array<String>) {
                 model("stepping")
             }
 
+            testClass<AbstractFirJsSteppingSplitTest> {
+                model("stepping")
+            }
+
+            testClass<AbstractFirJsSteppingSplitWithInlinedFunInKlibTest> {
+                model("stepping")
+            }
+
             testClass<AbstractIrJsLocalVariableTest>(
                 annotations = listOf(
                     *legacyFrontend(),

js/js.tests/testFixtures/org/jetbrains/kotlin/js/test/fir/AbstractJsFirTest.kt

@@ -300,8 +300,10 @@ open class AbstractFirJsSteppingTest(
     }
 }
 
-open class AbstractFirJsSteppingWithInlinedFunInKlibTest : AbstractFirJsSteppingTest(
-    testGroupOutputDirPrefix = "debug/firSteppingWithInlinedFunInKlib/"
+open class AbstractFirJsSteppingWithInlinedFunInKlibTest(
+    testGroupOutputDirPrefix: String = "debug/firSteppingWithInlinedFunInKlib/"
+) : AbstractFirJsSteppingTest(
+    testGroupOutputDirPrefix = testGroupOutputDirPrefix
 ) {
     override fun configure(builder: TestConfigurationBuilder) {
         super.configure(builder)
@@ -316,6 +318,42 @@ open class AbstractFirJsSteppingWithInlinedFunInKlibTest : AbstractFirJsStepping
     }
 }
 
+open class AbstractFirJsSteppingSplitTest : AbstractFirJsSteppingTest(
+    testGroupOutputDirPrefix = "debug/firSteppingSplit/"
+) {
+    override val additionalIgnoreDirectives: List<ValueDirective<TargetBackend>>?
+        get() = listOf(IGNORE_BACKEND_K2_MULTI_MODULE)
+
+    override fun configure(builder: TestConfigurationBuilder) {
+        super.configure(builder)
+        with(builder) {
+            @OptIn(TestInfrastructureInternals::class)
+            useModuleStructureTransformers(
+                ::SplittingModuleTransformerForBoxTests
+            )
+            useMetaTestConfigurators(::SplittingTestConfigurator)
+        }
+    }
+}
+
+open class AbstractFirJsSteppingSplitWithInlinedFunInKlibTest : AbstractFirJsSteppingWithInlinedFunInKlibTest(
+    testGroupOutputDirPrefix = "debug/firSteppingSplit/"
+) {
+    override val additionalIgnoreDirectives: List<ValueDirective<TargetBackend>>?
+        get() = listOf(IGNORE_BACKEND_K2_MULTI_MODULE)
+
+    override fun configure(builder: TestConfigurationBuilder) {
+        super.configure(builder)
+        with(builder) {
+            @OptIn(TestInfrastructureInternals::class)
+            useModuleStructureTransformers(
+                ::SplittingModuleTransformerForBoxTests
+            )
+            useMetaTestConfigurators(::SplittingTestConfigurator)
+        }
+    }
+}
+
 open class AbstractFirJsCodegenWasmJsInteropTest(
     testGroupOutputDirPrefix: String = "codegen/firWasmJsInteropJs/"
 ) : AbstractFirJsTest(