Add test for Forwardable#def_delegator with r55366.
Patch by @aycabta (aycabta .) [Bug #12837][ruby-core:77611]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62153 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Add test for Forwardable#def_delegator with r55366.
Patch by @aycabta (aycabta .)
[Bug #12837][ruby-core:77611]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62153 b2dd03c8-39d4-4d8f-98ff-823fe69b080e