Revert "[resolvers/webpack] [refactor] replace lodash/isEqual usage with deep-equal"

This reverts commit 1e81734.

Fixes #2857.

Author: ljharb

resolvers/webpack/index.js

@@ -2,7 +2,7 @@
 
 const findRoot = require('find-root');
 const path = require('path');
-const deepEqual = require('deep-equal');
+const isEqual = require('lodash/isEqual');
 const find = require('array.prototype.find');
 const interpret = require('interpret');
 const fs = require('fs');
@@ -163,7 +163,7 @@ const MAX_CACHE = 10;
 const _cache = [];
 function getResolveSync(configPath, webpackConfig, cwd) {
   const cacheKey = { configPath, webpackConfig };
-  let cached = find(_cache, function (entry) { return deepEqual(entry.key, cacheKey, { strict: true }); });
+  let cached = find(_cache, function (entry) { return isEqual(entry.key, cacheKey); });
   if (!cached) {
     cached = {
       key: cacheKey,

resolvers/webpack/package.json

@@ -32,13 +32,13 @@
   "dependencies": {
     "array.prototype.find": "^2.2.1",
     "debug": "^3.2.7",
-    "deep-equal": "^2.2.2",
     "enhanced-resolve": "^0.9.1",
     "find-root": "^1.1.0",
     "has": "^1.0.3",
     "interpret": "^1.4.0",
     "is-core-module": "^2.13.0",
     "is-regex": "^1.1.4",
+    "lodash": "^4.17.21",
     "resolve": "^2.0.0-next.4",
     "semver": "^5.7.2"
   },