object.c: fix searching nested const paths
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
object.c: fix searching nested const paths
paths should not search from toplevel constants.
[ruby-core:92202] [Bug #15758]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e