dev-env: fix eslint script

fix some eslint errors

.eslintignore

@@ -1,2 +1,3 @@
-**/*.js
-!src/*.js
+node_modules/**/*.js
+lib/**/*.js
+test/**/*.js

package.json

@@ -9,7 +9,7 @@
     "pretest": "npm run build && npm run lint",
     "test": "mocha",
     "watch": "mocha --watch",
-    "lint": "eslint ./src/index.js"
+    "lint": "eslint **/*.js"
   },
   "repository": {
     "type": "git",

src/Macro.js

@@ -41,13 +41,13 @@ export default class Macro {
       traverse(cloned, {
         Identifier(subPath) {
           const {node: child, parent} = subPath;
-          if (parent.type !== "MemberExpression" || parent.object === child || (parent.computed && parent.property === child)) {
+          if (parent.type !== "MemberExpression" || parent.object === child || parent.computed && parent.property === child) {
             if (params[child.name]) {
               const param = params[child.name];
               if (
                 param.replacement.type === 'Identifier' ||
                 param.replacement.type === 'Literal' ||
-                (paramReferenceCounts[child.name] === 1 && param.replacement.type === 'MemberExpression')
+                paramReferenceCounts[child.name] === 1 && param.replacement.type === 'MemberExpression'
               ) {
                 subPath.replaceWith(param.replacement);
                 seen[child.name] = param.replacement;

src/visitors.js

@@ -1,6 +1,5 @@
 import {$processedByMacro} from './symbols';
 import * as t from 'babel-types';
-import traverse from 'babel-traverse';
 import Macro from './Macro';
 
 export const collectMacros = {