"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/psi/annotation/options/local.txt

@@ -0,0 +1,62 @@
+JetFile: local.kt
+  PACKAGE_DIRECTIVE
+    <empty list>
+  IMPORT_LIST
+    <empty list>
+  FUN
+    PsiElement(fun)('fun')
+    PsiWhiteSpace(' ')
+    PsiElement(IDENTIFIER)('foo')
+    VALUE_PARAMETER_LIST
+      PsiElement(LPAR)('(')
+      PsiElement(RPAR)(')')
+    PsiElement(COLON)(':')
+    PsiWhiteSpace(' ')
+    TYPE_REFERENCE
+      USER_TYPE
+        REFERENCE_EXPRESSION
+          PsiElement(IDENTIFIER)('Int')
+    PsiWhiteSpace(' ')
+    BLOCK
+      PsiElement(LBRACE)('{')
+      PsiWhiteSpace('\n    ')
+      CLASS
+        MODIFIER_LIST
+          ANNOTATION_ENTRY
+            PsiElement(AT)('@')
+            CONSTRUCTOR_CALLEE
+              TYPE_REFERENCE
+                USER_TYPE
+                  REFERENCE_EXPRESSION
+                    PsiElement(IDENTIFIER)('annotation')
+        PsiWhiteSpace(' ')
+        PsiElement(class)('class')
+        PsiWhiteSpace(' ')
+        PsiElement(IDENTIFIER)('Ann')
+      PsiWhiteSpace('\n    ')
+      PROPERTY
+        MODIFIER_LIST
+          ANNOTATION_ENTRY
+            PsiElement(AT)('@')
+            CONSTRUCTOR_CALLEE
+              TYPE_REFERENCE
+                USER_TYPE
+                  REFERENCE_EXPRESSION
+                    PsiElement(IDENTIFIER)('Ann')
+        PsiWhiteSpace(' ')
+        PsiElement(val)('val')
+        PsiWhiteSpace(' ')
+        PsiElement(IDENTIFIER)('x')
+        PsiWhiteSpace(' ')
+        PsiElement(EQ)('=')
+        PsiWhiteSpace(' ')
+        INTEGER_CONSTANT
+          PsiElement(INTEGER_LITERAL)('1')
+      PsiWhiteSpace('\n    ')
+      RETURN
+        PsiElement(return)('return')
+        PsiWhiteSpace(' ')
+        REFERENCE_EXPRESSION
+          PsiElement(IDENTIFIER)('x')
+      PsiWhiteSpace('\n')
+      PsiElement(RBRACE)('}')