privat/nit — pull request #102 by R4PaSs (2013-09-20 14:23:10+00:00)
Title: Compiler fixes

Fixed 2 bugs :
- One introduced in a previous patch to defer the String constructors to NativeString, the monomorphic send makes it impossible to abstract the to_s_with_length method in the new String model
- Another one was in nitg prior to that and had an erroneous implementation of object_id on Char and Bool, which caused a cast error when accessing the method at runtime.