JVM: Make coroutines spilling tests runtime

instead of bytecode text ones. Check the content of continuation
object instead of bytecode, since this is less prone to changes during
changes in coroutines codegen.

 #KT-48678

native/native.tests/tests-gen/org/jetbrains/kotlin/konan/blackboxtest/NativeCodegenBoxTestGenerated.java

@@ -10685,6 +10685,18 @@ public class NativeCodegenBoxTestGenerated extends AbstractNativeCodegenBoxTest
                 public void testSafeCallElvis() throws Exception {
                     runTest("compiler/testData/codegen/box/coroutines/varSpilling/safeCallElvis.kt");
                 }
+
+                @Nested
+                @TestMetadata("compiler/testData/codegen/box/coroutines/varSpilling/cleanup")
+                @TestDataPath("$PROJECT_ROOT")
+                @Tag("codegen")
+                @UseExtTestCaseGroupProvider()
+                public class Cleanup {
+                    @Test
+                    public void testAllFilesPresentInCleanup() throws Exception {
+                        KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/codegen/box/coroutines/varSpilling/cleanup"), Pattern.compile("^(.+)\\.kt$"), null, TargetBackend.NATIVE, true);
+                    }
+                }
             }
         }