Fix in toString nullpointer
Actually gave ifParser a location (sometimes)
Merge branch 'master' of https://github.com/wyvernlang/wyvern into il_interp
Little fix
Merge branch 'master' of https://github.com/wyvernlang/wyvern into il_interp
Fix for non-pure singleton statements in ifs
Merge branch 'master' of https://github.com/wyvernlang/wyvern into il_interp
more tests, and comments