path: resolve normalize drive letter to lower case

make path.resolve work the same as path.normalize

lib/path.js

@@ -163,6 +163,11 @@ if (isWindows) {
     resolvedTail = normalizeArray(resolvedTail.split(/[\\\/]+/).filter(f),
                                   !resolvedAbsolute).join('\\');
 
+     // If device is a drive letter, we'll normalize to lower case.
+     if (resolvedDevice && resolvedDevice.charAt(1) === ':')
+       resolvedDevice = resolvedDevice[0].toLowerCase() +
+        resolvedDevice.substr(1);
+
     return (resolvedDevice + (resolvedAbsolute ? '\\' : '') + resolvedTail) ||
            '.';
   };

test/simple/test-module-nodemodulepaths.js

@@ -21,6 +21,7 @@
 
 var common = require('../common');
 var assert = require('assert');
+var path = require('path');
 
 var module = require('module');
 
@@ -29,7 +30,7 @@ var isWindows = process.platform === 'win32';
 var file, delimiter, paths;
 
 if (isWindows) {
-  file = 'C:\\Users\\Rocko Artischocko\\node_stuff\\foo';
+  file = path.normalize('C:\\Users\\Rocko Artischocko\\node_stuff\\foo');
   delimiter = '\\'
 } else {
   file = '/usr/test/lib/node_modules/npm/foo';

test/simple/test-path.js

@@ -321,7 +321,7 @@ if (isWindows) {
        [['c:/ignore', 'd:\\a/b\\c/d', '\\e.exe'], 'd:\\e.exe'],
        [['c:/ignore', 'c:/some/file'], 'c:\\some\\file'],
        [['d:/ignore', 'd:some/dir//'], 'd:\\ignore\\some\\dir'],
-       [['.'], process.cwd()],
+       [['.'], path.normalize(process.cwd())],
        [['//server/share', '..', 'relative\\'], '\\\\server\\share\\relative'],
        [['c:/', '//'], 'c:\\'],
        [['c:/', '//dir'], 'c:\\dir'],