Properly evaluate @Conditional in case of multiple imports for same config class (fixing regression in Spring Boot)

Issue: SPR-11788
(cherry picked from commit 7d78c65)

spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassBeanDefinitionReader.java

@@ -395,6 +395,7 @@ class ConfigurationClassBeanDefinitionReader {
 					for (ConfigurationClass importedBy : configClass.getImportedBy()) {
 						if (!shouldSkip(importedBy)) {
 							allSkipped = false;
+							break;
 						}
 					}
 					if (allSkipped) {

spring-context/src/main/java/org/springframework/context/annotation/ConfigurationCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -19,40 +19,40 @@ package org.springframework.context.annotation;
 /**
  * A {@link Condition} that offers more fine-grained control when used with
  * {@code @Configuration}. Allows certain {@link Condition}s to adapt when they match
- * based on the configuration phase. For example, a condition that checks if a bean has
- * already been registered might choose to only be evaluated during the
+ * based on the configuration phase. For example, a condition that checks if a bean
+ * has already been registered might choose to only be evaluated during the
  * {@link ConfigurationPhase#REGISTER_BEAN REGISTER_BEAN} {@link ConfigurationPhase}.
  *
  * @author Phillip Webb
  * @since 4.0
+ * @see Configuration
  */
 public interface ConfigurationCondition extends Condition {
 
 	/**
-	 * Returns the {@link ConfigurationPhase} in which the condition should be evaluated.
+	 * Return the {@link ConfigurationPhase} in which the condition should be evaluated.
 	 */
 	ConfigurationPhase getConfigurationPhase();
 
+
 	/**
 	 * The various configuration phases where the condition could be evaluated.
 	 */
 	public static enum ConfigurationPhase {
 
 		/**
-		 * The {@link Condition} should be evaluated as a {@code @Configuration} class is
-		 * being parsed.
-		 *
-		 * <p>If the condition does not match at this point the {@code @Configuration}
+		 * The {@link Condition} should be evaluated as a {@code @Configuration}
+		 * class is being parsed.
+		 * <p>If the condition does not match at this point, the {@code @Configuration}
 		 * class will not be added.
 		 */
 		PARSE_CONFIGURATION,
 
 		/**
-		 * The {@link Condition} should be evaluated when adding a regular (non
-		 * {@code @Configuration}) bean. The condition will not prevent
+		 * The {@link Condition} should be evaluated when adding a regular
+		 * (non {@code @Configuration}) bean. The condition will not prevent
 		 * {@code @Configuration} classes from being added.
-		 *
-		 * <p>At the time that the condition is evaluated all {@code @Configuration}s
+		 * <p>At the time that the condition is evaluated, all {@code @Configuration}s
 		 * will have been parsed.
 		 */
 		REGISTER_BEAN