Big change in quickfix tests: no stupid test data format with "before" and "after" file prefixes

idea/testData/quickfix/migration/replaceJavaClassAsAnnotationParameter/defaultRuntime.kt.after

@@ -0,0 +1,16 @@
+// "Replace Class<T> with KClass<T> in whole annotation" "true"
+// WITH_RUNTIME
+
+import kotlin.reflect.KClass
+
+annotation class Ann(
+    val arg1: Int,
+    val arg2: KClass<*> = Int::class,
+    val arg3: Array<KClass<out Any?>> = array(String::class),
+    vararg val arg4: KClass<out Any?> = array(Double::class)
+)
+
+Ann(arg1 = 1) class MyClass1
+Ann(arg1 = 2, arg2 = Boolean::class) class MyClass2
+Ann(arg1 = 3, arg3 = array(Boolean::class)) class MyClass3
+Ann(arg1 = 4, arg4 = String::class) class MyClass4