Revert signature change in BDRU.registerWithGeneratedName

This change broke binary compatibility as evidenced by running
the greenhouse test suite and finding that Spring Integration's
AbstractConsumerEndpointParser.parseInternal fails with
NoSuchMethodError when trying to invoke.

Author: cbeams

org.springframework.beans/src/main/java/org/springframework/beans/factory/support/BeanDefinitionReaderUtils.java

@@ -166,7 +166,7 @@ public static void registerBeanDefinition(
 	 * for the given bean definition or the definition cannot be registered
 	 */
 	public static String registerWithGeneratedName(
-			BeanDefinition definition, BeanDefinitionRegistry registry)
+			AbstractBeanDefinition definition, BeanDefinitionRegistry registry)
 			throws BeanDefinitionStoreException {
 
 		String generatedName = generateBeanName(definition, registry, false);

org.springframework.context/src/main/java/org/springframework/context/annotation/SimpleComponentRegistrar.java

@@ -20,9 +20,16 @@
 import org.springframework.beans.factory.parsing.BeanComponentDefinition;
 import org.springframework.beans.factory.parsing.ComponentDefinition;
 import org.springframework.beans.factory.parsing.ComponentRegistrar;
+import org.springframework.beans.factory.support.AbstractBeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
 
+/**
+ * TODO SPR-7420: document
+ *
+ * @author Chris Beams
+ * @since 3.1
+ */
 public class SimpleComponentRegistrar implements ComponentRegistrar {
 
 	private final BeanDefinitionRegistry registry;
@@ -32,7 +39,7 @@ public SimpleComponentRegistrar(BeanDefinitionRegistry registry) {
 	}
 
 	public String registerWithGeneratedName(BeanDefinition beanDefinition) {
-		return BeanDefinitionReaderUtils.registerWithGeneratedName(beanDefinition, this.registry);
+		return BeanDefinitionReaderUtils.registerWithGeneratedName((AbstractBeanDefinition)beanDefinition, this.registry);
 	}
 
 	public void registerBeanComponent(BeanComponentDefinition component) {