Update bean registration contribution tests to use TestCompiler

spring-beans/src/testFixtures/java/org/springframework/beans/testfixture/beans/factory/generator/BeanFactoryInitializer.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2002-2022 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.beans.testfixture.beans.factory.generator;
+
+import org.springframework.beans.factory.support.DefaultListableBeanFactory;
+
+@FunctionalInterface
+public interface BeanFactoryInitializer {
+
+	void initializeBeanFactory(DefaultListableBeanFactory beanFactory);
+
+}