Ruby

merge revision(s) 49999,50000: [Backport #10979]

    * hash.c (rb_any_hash): use same hash values with Float#hash so
      that -0.0 and +0.0 will be identical.
      [ruby-core:68541] [Bug #10979]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@50655 b2dd03c8-39d4-4d8f-98ff-823fe69b080e