Fixes isCore bug

Author: arcanis

lib/async.js

@@ -105,9 +105,10 @@ module.exports = function resolve(x, options, callback) {
             if ((/\/$/).test(x) && res === basedir) {
                 loadAsDirectory(res, opts.package, onfile);
             } else loadAsFile(res, opts.package, onfile);
+        } else if (isCore(x)) {
+            return cb(null, x);
         } else loadNodeModules(x, basedir, function (err, n, pkg) {
             if (err) cb(err);
-            else if (isCore(x)) return cb(null, x);
             else if (n) {
                 return maybeUnwrapSymlink(n, opts, function (err, realN) {
                     if (err) {

lib/sync.js

@@ -84,8 +84,6 @@ module.exports = function (x, options) {
         if (n) return maybeUnwrapSymlink(n, opts);
     }
 
-    if (isCore(x)) return x;
-
     var err = new Error("Cannot find module '" + x + "' from '" + parent + "'");
     err.code = 'MODULE_NOT_FOUND';
     throw err;