eval_intern.h: use TH_TMPPOP_TAG and TH_REPUSH_TAG

* eval_intern.h (TH_TMPPOP_TAG, TH_REPUSH_TAG): instead of TAG2 names.

* eval_intern.h (TH_REPUSH_TAG): suppress unused-value warning.

git-svn-id: svn+ssh://svn.ruby-lang.org/ruby/trunk@44848 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-02-06

git-svn-id: svn+ssh://svn.ruby-lang.org/ruby/trunk@44849 b2dd03c8-39d4-4d8f-98ff-823fe69b080e