diff --git a/compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/emptyLhs.kt b/compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/emptyLhs.kt
index ba00a415ddb..4e5c78fdc56 100644
--- a/compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/emptyLhs.kt
+++ b/compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/emptyLhs.kt
@@ -2,9 +2,6 @@
 
 package test
 
-import kotlin.reflect.KProperty
-import test.Derived.p
-
 class Foo {
     lateinit var p: String
 
@@ -29,12 +26,6 @@ object Bar {
     }
 }
 
-open class Base(val b: Boolean)
-
-object Derived : Base(::p.isInitialized) {
-    lateinit var p: String
-}
-
 fun box(): String {
     val foo = Foo()
     if (foo.test()) return "Fail 1"
@@ -44,7 +35,5 @@ fun box(): String {
     if (bar.test()) return "Fail 3"
     if (!bar.test()) return "Fail 4"
 
-    if (Derived.b) return "Fail 5"
-
     return bar.p
 }
diff --git a/compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/propertyImportedFromObject.kt b/compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/propertyImportedFromObject.kt
new file mode 100644
index 00000000000..a61d790b09a
--- /dev/null
+++ b/compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/propertyImportedFromObject.kt
@@ -0,0 +1,16 @@
+// WITH_RUNTIME
+// IGNORE_BACKEND: JS
+
+package test
+
+import test.Derived.p
+
+open class Base(val b: Boolean)
+
+object Derived : Base(::p.isInitialized) {
+    lateinit var p: String
+}
+
+fun box(): String {
+    return if (Derived.b) "Fail" else "OK"
+}
diff --git a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index 59c1113776d..faddcb1571a 100644
--- a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -13962,6 +13962,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                     doTest(fileName);
                 }
 
+                @TestMetadata("propertyImportedFromObject.kt")
+                public void testPropertyImportedFromObject() throws Exception {
+                    String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/propertyImportedFromObject.kt");
+                    doTest(fileName);
+                }
+
                 @TestMetadata("sideEffects.kt")
                 public void testSideEffects() throws Exception {
                     String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/sideEffects.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index 8bb5b7fc27f..6b2b5c174b2 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -13962,6 +13962,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                     doTest(fileName);
                 }
 
+                @TestMetadata("propertyImportedFromObject.kt")
+                public void testPropertyImportedFromObject() throws Exception {
+                    String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/propertyImportedFromObject.kt");
+                    doTest(fileName);
+                }
+
                 @TestMetadata("sideEffects.kt")
                 public void testSideEffects() throws Exception {
                     String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/sideEffects.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index 8af073d8d1a..cdcd294165d 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -13962,6 +13962,12 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                     doTest(fileName);
                 }
 
+                @TestMetadata("propertyImportedFromObject.kt")
+                public void testPropertyImportedFromObject() throws Exception {
+                    String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/propertyImportedFromObject.kt");
+                    doTest(fileName);
+                }
+
                 @TestMetadata("sideEffects.kt")
                 public void testSideEffects() throws Exception {
                     String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/sideEffects.kt");
diff --git a/idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java b/idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java
index f6e0c682e53..220d906d583 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java
+++ b/idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java
@@ -11735,8 +11735,7 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
         }
 
         public void testAllFilesPresentInMoveMemberToTopLevel() throws Exception {
-            KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("idea/testData/intentions/moveMemberToTopLevel"),
-                                                            Pattern.compile("^([\\w\\-_]+)\\.kt$"), TargetBackend.ANY, true);
+            KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("idea/testData/intentions/moveMemberToTopLevel"), Pattern.compile("^([\\w\\-_]+)\\.(kt|kts)$"), TargetBackend.ANY, true);
         }
 
         @TestMetadata("function.kt")
@@ -11771,15 +11770,13 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
 
         @TestMetadata("redeclarationConflictWithPackage.kt")
         public void testRedeclarationConflictWithPackage() throws Exception {
-            String fileName =
-                    KotlinTestUtils.navigationMetadata("idea/testData/intentions/moveMemberToTopLevel/redeclarationConflictWithPackage.kt");
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/moveMemberToTopLevel/redeclarationConflictWithPackage.kt");
             doTest(fileName);
         }
 
         @TestMetadata("redeclarationPropertyConflict.kt")
         public void testRedeclarationPropertyConflict() throws Exception {
-            String fileName =
-                    KotlinTestUtils.navigationMetadata("idea/testData/intentions/moveMemberToTopLevel/redeclarationPropertyConflict.kt");
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/moveMemberToTopLevel/redeclarationPropertyConflict.kt");
             doTest(fileName);
         }
     }
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
index 9572d082882..ab6030bb277 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
@@ -15252,6 +15252,18 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
                     doTest(fileName);
                 }
 
+                @TestMetadata("propertyImportedFromObject.kt")
+                public void testPropertyImportedFromObject() throws Exception {
+                    String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/propertyImportedFromObject.kt");
+                    try {
+                        doTest(fileName);
+                    }
+                    catch (Throwable ignore) {
+                        return;
+                    }
+                    throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+                }
+
                 @TestMetadata("sideEffects.kt")
                 public void testSideEffects() throws Exception {
                     String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/properties/lateinit/isInitializedAndDeinitialize/sideEffects.kt");