object.c: Object#itsef
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47028 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
object.c: Object#itsef
patch by Rafael França in [ruby-core:64156].
[EXPERIMENTAL] this method may be renamed due to compatibilities.
[ruby-core:44704] [Feature #6373]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47028 b2dd03c8-39d4-4d8f-98ff-823fe69b080e