merge revision(s) 54128: [Backport #12137]
* proc.c (proc_binding): proc from symbol can not make a binding. [ruby-core:74100] [Bug #12137]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@54413 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 54128: [Backport #12137]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@54413 b2dd03c8-39d4-4d8f-98ff-823fe69b080e