test_pathname.rb: fix exception
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_pathname.rb: fix exception
instead of TypeError when symlink is available.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e