[Fix] support windows virtual drive paths

Author: pos777

appveyor.yml

@@ -73,4 +73,9 @@ test_script:
  - node --version
  - npm --version
  # run tests
+ - cd
+ - npm run tests-only
+ - 'subst X: ..'
+ - 'cd /d X:\resolve'
+ - cd
  - npm run tests-only

lib/async.js

@@ -6,7 +6,7 @@ var nodeModulesPaths = require('./node-modules-paths');
 var normalizeOptions = require('./normalize-options');
 var isCore = require('is-core-module');
 
-var realpathFS = fs.realpath && typeof fs.realpath.native === 'function' ? fs.realpath.native : fs.realpath;
+var realpathFS = process.platform !== 'win32' && fs.realpath && typeof fs.realpath.native === 'function' ? fs.realpath.native : fs.realpath;
 
 var homedir = getHomedir();
 var defaultPaths = function () {

lib/sync.js

@@ -6,7 +6,7 @@ var caller = require('./caller');
 var nodeModulesPaths = require('./node-modules-paths');
 var normalizeOptions = require('./normalize-options');
 
-var realpathFS = fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
+var realpathFS = process.platform !== 'win32' && fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
 
 var homedir = getHomedir();
 var defaultPaths = function () {