Change nestedClasses logic to accept classes with nested type aliases

#KT-47650 fixed

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirBlackBoxCodegenTestGenerated.java

@@ -35521,6 +35521,12 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
                 runTest("compiler/testData/codegen/box/reflection/classes/nestedClasses.kt");
             }
 
+            @Test
+            @TestMetadata("nestedClassesInScript.kt")
+            public void testNestedClassesInScript() throws Exception {
+                runTest("compiler/testData/codegen/box/reflection/classes/nestedClassesInScript.kt");
+            }
+
             @Test
             @TestMetadata("nestedClassesJava.kt")
             public void testNestedClassesJava() throws Exception {

compiler/testData/codegen/box/reflection/classes/nestedClassesInScript.kt

@@ -0,0 +1,22 @@
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND_FIR: JVM_IR
+// IGNORE_LIGHT_ANALYSIS
+// WITH_RUNTIME
+// WITH_REFLECT
+
+// FILE: test.kt
+
+fun box(): String {
+    val kClass = Script::class
+    val nestedClasses = kClass.nestedClasses
+    val nestedClass = nestedClasses.single()
+    return nestedClass.simpleName!!
+}
+
+
+// FILE: Script.kts
+
+class OK
+typealias Tazz = List<OK>
+val x: Tazz = listOf()
+x

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/BlackBoxCodegenTestGenerated.java

@@ -35479,6 +35479,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 runTest("compiler/testData/codegen/box/reflection/classes/nestedClasses.kt");
             }
 
+            @Test
+            @TestMetadata("nestedClassesInScript.kt")
+            public void testNestedClassesInScript() throws Exception {
+                runTest("compiler/testData/codegen/box/reflection/classes/nestedClassesInScript.kt");
+            }
+
             @Test
             @TestMetadata("nestedClassesJava.kt")
             public void testNestedClassesJava() throws Exception {

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java

@@ -35521,6 +35521,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 runTest("compiler/testData/codegen/box/reflection/classes/nestedClasses.kt");
             }
 
+            @Test
+            @TestMetadata("nestedClassesInScript.kt")
+            public void testNestedClassesInScript() throws Exception {
+                runTest("compiler/testData/codegen/box/reflection/classes/nestedClassesInScript.kt");
+            }
+
             @Test
             @TestMetadata("nestedClassesJava.kt")
             public void testNestedClassesJava() throws Exception {

compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -28052,6 +28052,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 runTest("compiler/testData/codegen/box/reflection/classes/nestedClasses.kt");
             }
 
+            @TestMetadata("nestedClassesInScript.kt")
+            public void testNestedClassesInScript() throws Exception {
+                runTest("compiler/testData/codegen/box/reflection/classes/nestedClassesInScript.kt");
+            }
+
             @TestMetadata("nestedClassesJava.kt")
             public void testNestedClassesJava() throws Exception {
                 runTest("compiler/testData/codegen/box/reflection/classes/nestedClassesJava.kt");