Ruby

test_refinement.rb: Symbol#to_proc test

• test/ruby/test_refinement.rb (test_symbol_proc): a Symbol is
  converted to a Proc in the caller's context. [Feature #9451]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56476 b2dd03c8-39d4-4d8f-98ff-823fe69b080e