Make GeneratedClasses#withFeatureNamePrefix(String) public

See spring-projectsgh-30861
Closes spring-projectsgh-30897

spring-core/src/main/java/org/springframework/aot/generate/GeneratedClasses.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -176,6 +176,19 @@ public GeneratedClass addForFeatureComponent(String featureName,
 		return addForFeatureComponent(featureName, ClassName.get(targetComponent), type);
 	}
 
+	/**
+	 * Create a new {@link GeneratedClasses} instance using the specified feature
+	 * name prefix to qualify generated class names for a dedicated round of code
+	 * generation.
+	 * @param featureNamePrefix the feature name prefix to use
+	 * @return a new instance for the specified feature name prefix
+	 * @since 6.0.12
+	 */
+	public GeneratedClasses withFeatureNamePrefix(String featureNamePrefix) {
+		return new GeneratedClasses(this.classNameGenerator.withFeatureNamePrefix(featureNamePrefix),
+				this.classes, this.classesByOwner);
+	}
+
 	private GeneratedClass createAndAddGeneratedClass(String featureName,
 			@Nullable ClassName targetComponent, Consumer<TypeSpec.Builder> type) {
 
@@ -199,11 +212,6 @@ void writeTo(GeneratedFiles generatedFiles) {
 		}
 	}
 
-	GeneratedClasses withFeatureNamePrefix(String name) {
-		return new GeneratedClasses(this.classNameGenerator.withFeatureNamePrefix(name),
-				this.classes, this.classesByOwner);
-	}
-
 	private record Owner(String featureNamePrefix, String featureName, @Nullable ClassName target) {
 	}