-Wsuggest-attribute=noreturn on io_spec_rb_io_wait_readable
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64367 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-Wsuggest-attribute=noreturn on io_spec_rb_io_wait_readable
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64367 b2dd03c8-39d4-4d8f-98ff-823fe69b080e