"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/EnumArgumentWithCustomToString.txt

@@ -18,7 +18,7 @@ internal final enum class E : kotlin.Enum<test.E> {
     public final /*synthesized*/ fun values(): kotlin.Array<test.E>
 }
 
-internal final annotation class EnumAnno : kotlin.Annotation {
+kotlin.annotation.annotation() internal final annotation class EnumAnno : kotlin.Annotation {
     /*primary*/ public constructor EnumAnno(/*0*/ value: test.E)
     internal final val value: test.E
         internal final fun <get-value>(): test.E
@@ -29,7 +29,7 @@ public final class EnumArgumentWithCustomToString {
     test.EnumAnno(value = E.CAKE) test.EnumArrayAnno(value = {E.CAKE, E.CAKE}) internal final fun annotated(): kotlin.Unit
 }
 
-internal final annotation class EnumArrayAnno : kotlin.Annotation {
+kotlin.annotation.annotation() internal final annotation class EnumArrayAnno : kotlin.Annotation {
     /*primary*/ public constructor EnumArrayAnno(/*0*/ vararg value: test.E /*kotlin.Array<out test.E>*/)
     internal final val value: kotlin.Array<out test.E>
         internal final fun <get-value>(): kotlin.Array<out test.E>