win,errors: remap ERROR_ACCESS_DENIED to UV_EACCES

If we try to use uv_fs_rmdir on a read-only directory on Windows, it
internally calls _wrmdir, which sets _doserrno to ERROR_ACCESS_DENIED
and errno to EACCES. However, ERROR_ACCESS_DENIED is mapped to UV_EPERM,
so I believe it should be remapped to UV_EACCES.

Signed-off-by: Darshan Sen <raisinten@gmail.com>

src/win/error.c

@@ -73,6 +73,7 @@ int uv_translate_sys_error(int sys_errno) {
     case WSAEACCES:                         return UV_EACCES;
     case ERROR_ELEVATION_REQUIRED:          return UV_EACCES;
     case ERROR_CANT_ACCESS_FILE:            return UV_EACCES;
+    case ERROR_ACCESS_DENIED:               return UV_EACCES;
     case ERROR_ADDRESS_ALREADY_ASSOCIATED:  return UV_EADDRINUSE;
     case WSAEADDRINUSE:                     return UV_EADDRINUSE;
     case WSAEADDRNOTAVAIL:                  return UV_EADDRNOTAVAIL;
@@ -154,7 +155,6 @@ int uv_translate_sys_error(int sys_errno) {
     case WSAENOTSOCK:                       return UV_ENOTSOCK;
     case ERROR_NOT_SUPPORTED:               return UV_ENOTSUP;
     case ERROR_BROKEN_PIPE:                 return UV_EOF;
-    case ERROR_ACCESS_DENIED:               return UV_EPERM;
     case ERROR_PRIVILEGE_NOT_HELD:          return UV_EPERM;
     case ERROR_BAD_PIPE:                    return UV_EPIPE;
     case ERROR_NO_DATA:                     return UV_EPIPE;