[eslint] fix eslint failures

.eslintrc

@@ -15,7 +15,7 @@
     },
     "parserOptions": {
         "sourceType": "module",
-        "ecmaVersion": 6,
+        "ecmaVersion": 2020,
     },
     "rules": {
         "comma-dangle": [2, "always-multiline"],

resolvers/webpack/index.js

@@ -271,18 +271,18 @@ function createWebpack1ResolveSync(webpackRequire, resolveConfig, plugins) {
     makeRootPlugin(ModulesInRootPlugin, 'module', resolveConfig.root),
     new ModulesInDirectoriesPlugin(
       'module',
-      resolveConfig.modulesDirectories || resolveConfig.modules || ['web_modules', 'node_modules']
+      resolveConfig.modulesDirectories || resolveConfig.modules || ['web_modules', 'node_modules'],
     ),
     makeRootPlugin(ModulesInRootPlugin, 'module', resolveConfig.fallback),
     new ModuleAsFilePlugin('module'),
     new ModuleAsDirectoryPlugin('module'),
     new DirectoryDescriptionFilePlugin(
       'package.json',
-      ['module', 'jsnext:main'].concat(resolveConfig.packageMains || webpack1DefaultMains)
+      ['module', 'jsnext:main'].concat(resolveConfig.packageMains || webpack1DefaultMains),
     ),
     new DirectoryDefaultFilePlugin(['index']),
     new FileAppendPlugin(resolveConfig.extensions || ['', '.webpack.js', '.web.js', '.js']),
-    new ResultSymlinkPlugin()
+    new ResultSymlinkPlugin(),
   );
 
 
@@ -422,7 +422,7 @@ function findConfigPath(configPath, packageDir) {
       }
 
       const maybePath = path.resolve(
-        path.join(packageDir, 'webpack.config' + maybeExtension)
+        path.join(packageDir, 'webpack.config' + maybeExtension),
       );
       if (fs.existsSync(maybePath)) {
         configPath = maybePath;

tests/.eslintrc

@@ -0,0 +1,9 @@
+{
+  "env": {
+    "mocha": true,
+  },
+  "rules": {
+    "max-len": 0,
+    "import/default": 0,
+  },
+}

utils/.eslintrc

@@ -0,0 +1,5 @@
+{
+  "parserOptions": {
+    "ecmaVersion": 6,
+  },
+}

utils/parse.js

@@ -52,11 +52,7 @@ exports.default = function parse(path, content, context) {
       console.warn('Line ' + e.lineNumber + ', column ' + e.column + ': ' + e.message);
     }
     if (!ast || typeof ast !== 'object') {
-      console.warn(
-        '`parseForESLint` from parser `' +
-          parserPath +
-          '` is invalid and will just be ignored'
-      );
+      console.warn('`parseForESLint` from parser `' + parserPath + '` is invalid and will just be ignored');
     } else {
       return ast;
     }

utils/resolve.js

@@ -217,10 +217,7 @@ const erroredContexts = new Set();
  */
 function resolve(p, context) {
   try {
-    return relative( p
-      , context.getFilename()
-      , context.settings
-    );
+    return relative(p, context.getFilename(), context.settings);
   } catch (err) {
     if (!erroredContexts.has(context)) {
       // The `err.stack` string starts with `err.name` followed by colon and `err.message`.