module: allow long paths for require on Windows

https://github.com/nodejs/io.js/pull/1801 introduced internal fs methods
to speed up require. The methods do not call path._makeLong like their
counterpart from the fs module. This brings back the old behaviour.

Fixes: https://github.com/nodejs/io.js/issues/1990
Fixes: https://github.com/nodejs/io.js/issues/1980
Fixes: https://github.com/nodejs/io.js/issues/1849

PR-URL: https://github.com/nodejs/io.js/pull/1991/files


Reviewed-By: Bert Belder <bertbelder@gmail.com>