parse.y: type-punning cast

* parse.y (rb_gc_free_dsymbol): use intermediate st_data_t and get
  rid of type-punning cast.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45443 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
re.c: indent

* re.c (rb_reg_search): adjust indent.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45444 b2dd03c8-39d4-4d8f-98ff-823fe69b080e