"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/noNameProperty.txt

@@ -1,6 +1,6 @@
 package
 
-internal final annotation class Ann : kotlin.Annotation {
+kotlin.annotation.annotation() internal final annotation class Ann : kotlin.Annotation {
     public constructor Ann(/*0*/ x: kotlin.Int, /*1*/ <no name provided>: [ERROR : Type annotation was missing for parameter <no name provided>])
     internal final val <no name provided>: [ERROR : Annotation is absent]
     internal final val x: kotlin.Int