Specify refinement inheritance by Module#include.
[ruby-core:79880] [Bug #13271]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60992 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Specify refinement inheritance by Module#include.
[ruby-core:79880] [Bug #13271]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60992 b2dd03c8-39d4-4d8f-98ff-823fe69b080e