fix a bug where completion fails when one of the -cp doesn't exists
fix a bug where completion fails when one of the -cp doesn't exists

MattTuttle/haxe-sublime2-bundle,MattTuttle/haxe-sublime2-bundle,clemos/haxe-sublime-bundle,strauzen/haxe-sublime-bundle,joa/haxe-sublime2-bundle,strauzen/haxe-sublime-bundle