Merge: More macosx compat things

Are nedded to pass more tests on jenkins

http://gresil.org/jenkins/job/CI%20Github%20OSX/

Pull-Request: #1017
Reviewed-by: Alexis Laferrière <alexis.laf@xymus.net>
Reviewed-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --cc src/compiler/abstract_compiler.nit
Simple merge

diff --cc src/nitx.nit
Simple merge