diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsBoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsBoxTestGenerated.java
index 44056278440..6ab24e02dda 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsBoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsBoxTestGenerated.java
@@ -10208,12 +10208,24 @@ public class FirJsBoxTestGenerated extends AbstractFirJsBoxTest {
             runTest("js/js.translator/testData/box/reflection/kClass.kt");
         }
 
+        @Test
+        @TestMetadata("kClassCompanion.kt")
+        public void testKClassCompanion() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassCompanion.kt");
+        }
+
         @Test
         @TestMetadata("kClassIsInstance.kt")
         public void testKClassIsInstance() throws Exception {
             runTest("js/js.translator/testData/box/reflection/kClassIsInstance.kt");
         }
 
+        @Test
+        @TestMetadata("kClassLambda.kt")
+        public void testKClassLambda() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassLambda.kt");
+        }
+
         @Test
         @TestMetadata("kClassOnReifiedType.kt")
         public void testKClassOnReifiedType() throws Exception {
@@ -10244,6 +10256,12 @@ public class FirJsBoxTestGenerated extends AbstractFirJsBoxTest {
             runTest("js/js.translator/testData/box/reflection/kClassSimpleName.kt");
         }
 
+        @Test
+        @TestMetadata("kClassSuspendFunction.kt")
+        public void testKClassSuspendFunction() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassSuspendFunction.kt");
+        }
+
         @Test
         @TestMetadata("kClassToAndFromJsClass.kt")
         public void testKClassToAndFromJsClass() throws Exception {
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6BoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6BoxTestGenerated.java
index 19e9988a0e5..a4fcb18c72e 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6BoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6BoxTestGenerated.java
@@ -10314,12 +10314,24 @@ public class FirJsES6BoxTestGenerated extends AbstractFirJsES6BoxTest {
             runTest("js/js.translator/testData/box/reflection/kClass.kt");
         }
 
+        @Test
+        @TestMetadata("kClassCompanion.kt")
+        public void testKClassCompanion() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassCompanion.kt");
+        }
+
         @Test
         @TestMetadata("kClassIsInstance.kt")
         public void testKClassIsInstance() throws Exception {
             runTest("js/js.translator/testData/box/reflection/kClassIsInstance.kt");
         }
 
+        @Test
+        @TestMetadata("kClassLambda.kt")
+        public void testKClassLambda() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassLambda.kt");
+        }
+
         @Test
         @TestMetadata("kClassOnReifiedType.kt")
         public void testKClassOnReifiedType() throws Exception {
@@ -10350,6 +10362,12 @@ public class FirJsES6BoxTestGenerated extends AbstractFirJsES6BoxTest {
             runTest("js/js.translator/testData/box/reflection/kClassSimpleName.kt");
         }
 
+        @Test
+        @TestMetadata("kClassSuspendFunction.kt")
+        public void testKClassSuspendFunction() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassSuspendFunction.kt");
+        }
+
         @Test
         @TestMetadata("kClassToAndFromJsClass.kt")
         public void testKClassToAndFromJsClass() throws Exception {
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsES6TestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsES6TestGenerated.java
index 8b9998e17bb..1774e2597a3 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsES6TestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsES6TestGenerated.java
@@ -10314,12 +10314,24 @@ public class IrBoxJsES6TestGenerated extends AbstractIrBoxJsES6Test {
             runTest("js/js.translator/testData/box/reflection/kClass.kt");
         }
 
+        @Test
+        @TestMetadata("kClassCompanion.kt")
+        public void testKClassCompanion() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassCompanion.kt");
+        }
+
         @Test
         @TestMetadata("kClassIsInstance.kt")
         public void testKClassIsInstance() throws Exception {
             runTest("js/js.translator/testData/box/reflection/kClassIsInstance.kt");
         }
 
+        @Test
+        @TestMetadata("kClassLambda.kt")
+        public void testKClassLambda() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassLambda.kt");
+        }
+
         @Test
         @TestMetadata("kClassOnReifiedType.kt")
         public void testKClassOnReifiedType() throws Exception {
@@ -10350,6 +10362,12 @@ public class IrBoxJsES6TestGenerated extends AbstractIrBoxJsES6Test {
             runTest("js/js.translator/testData/box/reflection/kClassSimpleName.kt");
         }
 
+        @Test
+        @TestMetadata("kClassSuspendFunction.kt")
+        public void testKClassSuspendFunction() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassSuspendFunction.kt");
+        }
+
         @Test
         @TestMetadata("kClassToAndFromJsClass.kt")
         public void testKClassToAndFromJsClass() throws Exception {
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsTestGenerated.java
index dfac6509e97..e78f86edc6a 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrBoxJsTestGenerated.java
@@ -10208,12 +10208,24 @@ public class IrBoxJsTestGenerated extends AbstractIrBoxJsTest {
             runTest("js/js.translator/testData/box/reflection/kClass.kt");
         }
 
+        @Test
+        @TestMetadata("kClassCompanion.kt")
+        public void testKClassCompanion() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassCompanion.kt");
+        }
+
         @Test
         @TestMetadata("kClassIsInstance.kt")
         public void testKClassIsInstance() throws Exception {
             runTest("js/js.translator/testData/box/reflection/kClassIsInstance.kt");
         }
 
+        @Test
+        @TestMetadata("kClassLambda.kt")
+        public void testKClassLambda() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassLambda.kt");
+        }
+
         @Test
         @TestMetadata("kClassOnReifiedType.kt")
         public void testKClassOnReifiedType() throws Exception {
@@ -10244,6 +10256,12 @@ public class IrBoxJsTestGenerated extends AbstractIrBoxJsTest {
             runTest("js/js.translator/testData/box/reflection/kClassSimpleName.kt");
         }
 
+        @Test
+        @TestMetadata("kClassSuspendFunction.kt")
+        public void testKClassSuspendFunction() throws Exception {
+            runTest("js/js.translator/testData/box/reflection/kClassSuspendFunction.kt");
+        }
+
         @Test
         @TestMetadata("kClassToAndFromJsClass.kt")
         public void testKClassToAndFromJsClass() throws Exception {
diff --git a/js/js.translator/testData/box/reflection/kClassCompanion.kt b/js/js.translator/testData/box/reflection/kClassCompanion.kt
new file mode 100644
index 00000000000..c3e694d4c33
--- /dev/null
+++ b/js/js.translator/testData/box/reflection/kClassCompanion.kt
@@ -0,0 +1,33 @@
+class A {
+    companion object {
+        fun getSimpleName() = this::class.simpleName
+    }
+}
+
+class B {
+    companion object MyCompanion {
+        fun getSimpleName() = this::class.simpleName
+    }
+}
+
+fun getSimpleName(x: Any) = x::class.simpleName
+inline fun <reified T> getSimpleNameReified(x: T) = T::class.simpleName
+
+fun box(): String {
+    assertEquals("Companion", A.getSimpleName())
+    assertEquals("MyCompanion", B.getSimpleName())
+
+    assertEquals("Companion", A.Companion.getSimpleName())
+    assertEquals("MyCompanion", B.MyCompanion.getSimpleName())
+
+    assertEquals("Companion", getSimpleName(A.Companion))
+    assertEquals("MyCompanion", getSimpleName(B.MyCompanion))
+
+    assertEquals("Companion", getSimpleNameReified(A.Companion))
+    assertEquals("MyCompanion", getSimpleNameReified(B.MyCompanion))
+
+    assertEquals("Companion", A.Companion::class.simpleName)
+    assertEquals("MyCompanion", B.MyCompanion::class.simpleName)
+
+    return "OK"
+}
diff --git a/js/js.translator/testData/box/reflection/kClassLambda.kt b/js/js.translator/testData/box/reflection/kClassLambda.kt
new file mode 100644
index 00000000000..b472f755147
--- /dev/null
+++ b/js/js.translator/testData/box/reflection/kClassLambda.kt
@@ -0,0 +1,81 @@
+import kotlin.coroutines.Continuation
+import kotlin.coroutines.EmptyCoroutineContext
+import kotlin.coroutines.startCoroutine
+
+class CoroutineStub {
+    companion object {
+        fun evaluate(c: suspend () -> Unit) {
+            c.startCoroutine(object : Continuation<Unit> {
+                override val context = EmptyCoroutineContext
+                override fun resumeWith(result: Result<Unit>) {
+                    result.getOrThrow()
+                }
+            })
+        }
+    }
+}
+
+fun testLabmdaParam(x: () -> Unit) {
+    assertEquals(x::class.simpleName, "Function0")
+}
+
+fun testSuspendLambaParam(x: suspend () -> Unit) {
+    assertEquals(x::class.simpleName, "Function1")
+}
+
+inline fun <reified T> testLabmdaParamGeneric(x: T) {
+    assertEquals(T::class.simpleName, "Function0")
+}
+
+inline fun <reified T> testSuspendLambaParamGeneric(x: T) {
+    assertEquals(T::class.simpleName, "SuspendFunction0")
+}
+
+fun box(): String {
+    testLabmdaParam({})
+    testSuspendLambaParam(suspend {})
+    testLabmdaParamGeneric({})
+    testSuspendLambaParamGeneric(suspend {})
+
+    val sx = suspend {
+        val sy = suspend {
+            val sz = suspend {
+                val a = {
+                    val b = {
+                        val c = {
+                            CoroutineStub.evaluate {
+                                val x = suspend {
+                                    val y = suspend {
+                                        val z = suspend { }
+                                        assertEquals(z::class.simpleName, "Function1")
+
+                                        assertEquals((suspend { })::class.simpleName, "Function1")
+                                        assertEquals(({ })::class.simpleName, "Function0")
+                                    }
+                                    y()
+                                    assertEquals(y::class.simpleName, "Function1")
+                                }
+                                x()
+                                assertEquals(x::class.simpleName, "Function1")
+                            }
+                        }
+                        c()
+                        assertEquals(c::class.simpleName, "Function0")
+                    }
+                    b()
+                    assertEquals(b::class.simpleName, "Function0")
+                }
+                a()
+                assertEquals(a::class.simpleName, "Function0")
+            }
+            sz()
+            assertEquals(sz::class.simpleName, "Function1")
+        }
+        sy()
+        assertEquals(sy::class.simpleName, "Function1")
+    }
+    assertEquals(sx::class.simpleName, "Function1")
+    CoroutineStub.evaluate(sx)
+
+    return "OK"
+}
diff --git a/js/js.translator/testData/box/reflection/kClassSuspendFunction.kt b/js/js.translator/testData/box/reflection/kClassSuspendFunction.kt
new file mode 100644
index 00000000000..f466049b095
--- /dev/null
+++ b/js/js.translator/testData/box/reflection/kClassSuspendFunction.kt
@@ -0,0 +1,31 @@
+suspend fun testB(x: Int) {}
+
+suspend fun testA() {
+    testB(123)
+    testB(456)
+}
+
+class A {
+    suspend fun testC() {
+        testA()
+    }
+}
+
+fun getSimpleName0(x: suspend () -> Unit) = x::class.simpleName
+fun getSimpleName1(x: suspend (x: Int) -> Unit) = x::class.simpleName
+inline fun <reified T> getSimpleNameReified(x: T) = T::class.simpleName
+
+fun box(): String {
+    assertEquals("Function1", getSimpleName0(::testA))
+    assertEquals("Function2", getSimpleName1(::testB))
+    assertEquals("Function1", getSimpleName0(A()::testC))
+
+    assertEquals("KSuspendFunction0", getSimpleNameReified(::testA))
+    assertEquals("KSuspendFunction1", getSimpleNameReified(::testB))
+    assertEquals("KSuspendFunction0", getSimpleNameReified(A()::testC))
+
+    assertEquals("Function1", (::testA)::class.simpleName)
+    assertEquals("Function2", (::testB)::class.simpleName)
+    assertEquals("Function1", (A()::testC)::class.simpleName)
+    return "OK"
+}