Add Kotlin hints for enclosing class

This is needed by Kotlin reflection in order to be able to list
class members on native.

Closes gh-32472

spring-context/src/main/java/org/springframework/context/aot/KotlinReflectionBeanRegistrationAotProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -66,6 +66,10 @@ class KotlinReflectionBeanRegistrationAotProcessor implements BeanRegistrationAo
 			if (superClass != null) {
 				registerHints(superClass, runtimeHints);
 			}
+			Class<?> enclosingClass = type.getEnclosingClass();
+			if (enclosingClass != null) {
+				runtimeHints.reflection().registerType(enclosingClass);
+			}
 		}
 	}