vm_eval.c: fix super from eval with scope

* vm_eval.c (eval_string_with_cref): fix super from eval with
  scope.  set klass in the current control frame to the class of
  the receiver in the context to be evaluated, this class/module
  must match the actual receiver to call super.
  [ruby-core:65122] [Bug #10263]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47645 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-09-20

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e