Remove duplication of BindableRuntimeHintsRegistrarTests

There were several tests in CPBFIAPT that were duplicating tests in
BindableRuntimeHintsRegistrarTests. To test the AOT processor, all
that is really necessary is to assert that the expected types are
found and passed to BindableRuntimeHintsRegistrar. The tests for
BindableRuntimeHintsRegistrar are then responsible for asserting
that the expected hints are generated for the various different
types.

Closes gh-35645

Author: wilkinsona

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/ConfigurationPropertiesBeanFactoryInitializationAotProcessor.java

@@ -40,7 +40,8 @@
 class ConfigurationPropertiesBeanFactoryInitializationAotProcessor implements BeanFactoryInitializationAotProcessor {
 
 	@Override
-	public BeanFactoryInitializationAotContribution processAheadOfTime(ConfigurableListableBeanFactory beanFactory) {
+	public ConfigurationPropertiesReflectionHintsContribution processAheadOfTime(
+			ConfigurableListableBeanFactory beanFactory) {
 		String[] beanNames = beanFactory.getBeanNamesForAnnotation(ConfigurationProperties.class);
 		List<Class<?>> types = new ArrayList<>();
 		for (String beanName : beanNames) {
@@ -55,7 +56,7 @@ public BeanFactoryInitializationAotContribution processAheadOfTime(ConfigurableL
 		return null;
 	}
 
-	private static final class ConfigurationPropertiesReflectionHintsContribution
+	static final class ConfigurationPropertiesReflectionHintsContribution
 			implements BeanFactoryInitializationAotContribution {
 
 		private final Iterable<Class<?>> types;
@@ -70,6 +71,10 @@ public void applyTo(GenerationContext generationContext,
 			BindableRuntimeHintsRegistrar.forTypes(this.types).registerHints(generationContext.getRuntimeHints());
 		}
 
+		Iterable<Class<?>> getTypes() {
+			return this.types;
+		}
+
 	}
 
 }