Don't assume parsing of sub-expression succeeded, this enables better error recovery
Don't assume parsing of sub-expression succeeded, this enables better error recovery

nathanielbaxter/libminizinc,jjdekker/libminizinc,nathanielbaxter/libminizinc,jjdekker/libminizinc,tias/libminizinc,nathanielbaxter/libminizinc,nathanielbaxter/libminizinc,tias/libminizinc,jjdekker/libminizinc,jjdekker/libminizinc