use RB_TYPE_P
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38653 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
use RB_TYPE_P
(add_activated_refinement), numeric.c (num_interval_step_size),
parse.y (arg, match_op_gen, cond0), range.c (range_bsearch),
vm_insnhelper.c (vm_get_iclass): use RB_TYPE_P() to optimize.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38653 b2dd03c8-39d4-4d8f-98ff-823fe69b080e