git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20143 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* common.mk, eval.c, safe.c, inits.c: separate safe.c from eval.c and make Init_safe(). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19467 b2dd03c8-39d4-4d8f-98ff-823fe69b080e