diff --git a/compiler/frontend/src/org/jetbrains/kotlin/script/KotlinScriptDefinitionFromAnnotatedTemplate.kt b/compiler/frontend/src/org/jetbrains/kotlin/script/KotlinScriptDefinitionFromAnnotatedTemplate.kt
index b211ff1546f..857978cce55 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/script/KotlinScriptDefinitionFromAnnotatedTemplate.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/script/KotlinScriptDefinitionFromAnnotatedTemplate.kt
@@ -75,8 +75,7 @@ open class KotlinScriptDefinitionFromAnnotatedTemplate(
                     sameSignature(function, resolveMethod)
                 }?.annotations?.filterIsInstance<AcceptedAnnotations>()
         resolverMethodAnnotations?.flatMap {
-            val v = it.supportedAnnotationClasses
-            v.toList() // TODO: inline after KT-9453 is resolved (now it fails with "java.lang.Class cannot be cast to kotlin.reflect.KClass")
+            it.supportedAnnotationClasses.toList()
         }
         ?: emptyList()
     }
diff --git a/compiler/testData/codegen/box/reflection/createAnnotation/arrayOfKClasses.kt b/compiler/testData/codegen/box/reflection/createAnnotation/arrayOfKClasses.kt
index 054ea5fc4cf..2be3e82667f 100644
--- a/compiler/testData/codegen/box/reflection/createAnnotation/arrayOfKClasses.kt
+++ b/compiler/testData/codegen/box/reflection/createAnnotation/arrayOfKClasses.kt
@@ -10,7 +10,7 @@ annotation class Anno(val klasses: Array<KClass<*>> = arrayOf(String::class, Int
 
 fun box(): String {
     val anno = Anno::class.constructors.single().callBy(emptyMap())
-    assertEquals(listOf(String::class, Int::class), (anno.klasses as Array<KClass<*>>).toList() /* TODO: KT-9453 */)
+    assertEquals(listOf(String::class, Int::class), anno.klasses.toList())
     assertEquals("@Anno(klasses=[class java.lang.String, int])", anno.toString())
     return "OK"
 }
diff --git a/compiler/testData/codegen/box/reflection/createAnnotation/callByKotlin.kt b/compiler/testData/codegen/box/reflection/createAnnotation/callByKotlin.kt
index f1c1934d25b..c0bb6c81133 100644
--- a/compiler/testData/codegen/box/reflection/createAnnotation/callByKotlin.kt
+++ b/compiler/testData/codegen/box/reflection/createAnnotation/callByKotlin.kt
@@ -42,7 +42,7 @@ fun box(): String {
     assertFails { create<TwoParamsOneDefault>(mapOf("s" to "Fail", "x" to "Fail")) }
 
     val t5 = create<TwoParamsOneDefaultKClass>(mapOf("string" to "OK"))
-    assertEquals(Number::class, t5.klass as KClass<*> /* TODO: KT-9453 */)
+    assertEquals(Number::class, t5.klass)
 
     assertFails("KClass (not Class) instances should be passed as arguments") {
         create<TwoNonDefaults>(mapOf("klass" to String::class.java, "string" to "Fail"))
diff --git a/compiler/testData/codegen/box/reflection/createAnnotation/callKotlin.kt b/compiler/testData/codegen/box/reflection/createAnnotation/callKotlin.kt
index b4c197f4abd..b667f40304c 100644
--- a/compiler/testData/codegen/box/reflection/createAnnotation/callKotlin.kt
+++ b/compiler/testData/codegen/box/reflection/createAnnotation/callKotlin.kt
@@ -32,7 +32,7 @@ fun box(): String {
     }
 
     val k = create<TwoNonDefaults>("OK", Int::class)
-    assertEquals(Int::class, k.klass as KClass<*> /* TODO: KT-9453 */)
+    assertEquals(Int::class, k.klass)
 
     return k.string
 }