ChangeLog: remove garbages

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46333 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
gc.c: int for simple predicates

* gc.c: use int for simple predicate functions instead of VALUE.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46334 b2dd03c8-39d4-4d8f-98ff-823fe69b080e