imported Oni Guruma 3.4.0.
* parse.y, re.c: Now mbclen() takes unsigned char as its argument.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7206 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* array.c (rb_ary_update): a[n,m]=nil no longer works as element
deletion.
* enum.c (enum_sort_by): protect continuation jump in.
[ruby-dev:24642]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7145 b2dd03c8-39d4-4d8f-98ff-823fe69b080e