refactor(no-undefined-tags): no need to check tags as always expected from comment-parser

refactor(require-jsdoc): use internal `getJSDocComment` to future-proof when removed from eslint

Author: brettz9

src/jsdocUtils.js

@@ -415,7 +415,7 @@ const lookupTable = {
         return false;
       }
 
-      // If we end up here, we stumbled upon an unknown elements
+      // If we end up here, we stumbled upon an unknown element.
       // Most likely it is enough to add it to the blacklist.
       //
       // throw new Error('Unknown node type: ' + node.type);

src/rules/noUndefinedTypes.js

@@ -58,7 +58,7 @@ export default iterateJsdoc(({
     })
     .map(parseComment)
     .flatMap((doc) => {
-      return (doc.tags || []).filter(({tag}) => {
+      return doc.tags.filter(({tag}) => {
         return utils.isNamepathDefiningTag(tag);
       });
     })

src/rules/requireJsdoc.js

@@ -2,6 +2,7 @@ import _ from 'lodash';
 import iterateJsdoc from '../iterateJsdoc';
 import jsdocUtils from '../jsdocUtils';
 import exportParser from '../exportParser';
+import getJSDocComment from '../eslint/getJSDocComment';
 
 const OPTIONS_SCHEMA = {
   additionalProperties: false,
@@ -125,7 +126,7 @@ export default iterateJsdoc(null, {
     const {require: requireOption, publicOnly} = getOptions(context);
 
     const checkJsDoc = (node) => {
-      const jsDocNode = sourceCode.getJSDocComment(node);
+      const jsDocNode = getJSDocComment(sourceCode, node);
 
       if (jsDocNode) {
         return;