"annotation" is now parsed as an identifier. It is no longer a soft keyword.

Sometimes it's allowed to parse "annotation" unescaped even if other annotations must be escaped.
A set of annotations and their options tests.
A swarm of existing tests fixed (mostly kotlin.annotation.annotation() added to txt-files).
STUB_VERSION increased. Some quick fixes slightly changed.

compiler/testData/diagnostics/tests/annotations/WrongAnnotationArgsOnObject.txt

@@ -3,7 +3,7 @@ package
 package test {
     internal val some: test.SomeObject
 
-    internal final annotation class BadAnnotation : kotlin.Annotation {
+    kotlin.annotation.annotation() internal final annotation class BadAnnotation : kotlin.Annotation {
         public constructor BadAnnotation(/*0*/ s: kotlin.String)
         internal final val s: kotlin.String
         public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean