removed supposed grammar optimization that prevented unexpected tokens to be correctly displayed in error messages
removed supposed grammar optimization that prevented unexpected tokens to be correctly displayed in error messages

git-svn-id: c3b8989232654601f1acea7403f771adaaa44a81@1007 2c1201b4-01cd-e047-a400-b836ae1fbc61

boo/boo-lang,boo/boo-lang,boo/boo-lang,boo/boo-lang,boo/boo-lang,boo/boo-lang,boo/boo-lang