* hash.c (Init_Hash): remove custom "hash" and "eql?".

* lib/set.rb (Set::eql): wrong definition.  [ruby-dev:25207]

* object.c (rb_obj_id_obsolete): warn always.

* eval.c (rb_enable_super): ditto.

* lib/set.rb (Set#==): [ruby-dev:25206]

* lib/pstore.rb (PStore#transaction): Use the empty content when a
  file is not found.  [ruby-dev:24561]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@7592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e