* ext/bigdecimal/bigdecimal.c: use `RB_TYPE_P(x, t)` instead of
  `TYPE(x) == t`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38809 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/bigdecimal/bigdecimal.c (BigDecimal_to_s): use CRuby style.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38810 b2dd03c8-39d4-4d8f-98ff-823fe69b080e