struct.c: cache member definition in a subclass
Since getting Qnil is already error, it is safe to use rb_attr_get.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50999 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
struct.c: cache member definition in a subclass
Since getting Qnil is already error, it is safe to use rb_attr_get.
Thanks to Sokolov Yura aka funny_falcon funny.falcon@gmail.com
in https://bugs.ruby-lang.org/issues/10585
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50999 b2dd03c8-39d4-4d8f-98ff-823fe69b080e