"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/loadJava/compiledKotlin/annotations/classes/AnnotationInClassObject.txt

@@ -6,14 +6,14 @@ internal final class A {
     public companion object Companion {
         /*primary*/ private constructor Companion()
 
-        internal final annotation class Anno1 : kotlin.Annotation {
+        kotlin.annotation.annotation() internal final annotation class Anno1 : kotlin.Annotation {
             /*primary*/ public constructor Anno1()
         }
 
         internal final class B {
             /*primary*/ public constructor B()
 
-            internal final annotation class Anno2 : kotlin.Annotation {
+            kotlin.annotation.annotation() internal final annotation class Anno2 : kotlin.Annotation {
                 /*primary*/ public constructor Anno2()
             }
         }