Deprecate AnnotationConfigApplicationContext { } Kotlin extension

Closes gh-23420

spring-context/src/main/kotlin/org/springframework/context/annotation/AnnotationConfigApplicationContextExtensions.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -23,5 +23,6 @@ package org.springframework.context.annotation
  * @author Sebastien Deleuze
  * @since 5.0
  */
+@Deprecated("Use regular apply method instead.", replaceWith = ReplaceWith("AnnotationConfigApplicationContext().apply(configure)"))
 fun AnnotationConfigApplicationContext(configure: AnnotationConfigApplicationContext.() -> Unit) =
 		AnnotationConfigApplicationContext().apply(configure)

spring-context/src/test/kotlin/org/springframework/context/annotation/AnnotationConfigApplicationContextExtensionsTests.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -29,6 +29,7 @@ import org.springframework.context.support.registerBean
 class AnnotationConfigApplicationContextExtensionsTests {
 
 	@Test
+	@Suppress("DEPRECATION")
 	fun `Instantiate AnnotationConfigApplicationContext`() {
 		val applicationContext = AnnotationConfigApplicationContext {
 			registerBean<Foo>()