Ruby » Ruby master

• io.c (nogvl_close, maygvl_close, nogvl_fclose, maygvl_fclose):
  suppress integer <-> pointer cast warnings.
  [Feature #4570] [ruby-core:35711]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36943 b2dd03c8-39d4-4d8f-98ff-823fe69b080e