checkAnnotations: store rule configuration locally

Author: Alexej Yaroshevich

lib/rules/validate-jsdoc/check-annotations.js

@@ -9,8 +9,6 @@ module.exports.options = {
     checkAnnotations: true
 };
 
-var tags;
-
 /**
  * @param {Object} options
  */
@@ -35,7 +33,7 @@ validateAnnotations.configure = function(options) {
         });
     }
 
-    tags = Object.create ? Object.create(null) : {};
+    var tags = this._tags = Object.create ? Object.create(null) : {};
 
     if (o === true) {
         Object.keys(availablePresets).forEach(function(preset) {
@@ -72,6 +70,7 @@ validateAnnotations.configure = function(options) {
  */
 function validateAnnotations(file, errors) {
     var comments = file.getComments();
+    var tags = this._tags;
     comments.forEach(function(commentNode) {
         if (commentNode.type !== 'Block' || commentNode.value[0] !== '*') {
             return;