called outside of a method.
* parse.y (arg): use INT2NUM, not INT2FIX for tUMINUS.
* parse.y (arg): unnecessary negative tPOW treatment.
* parse.y (tokadd_escape): wrong backslash escapement.
* parse.y (stmt,arg): too much void value check.
* parse.y (stmt,arg): need to check void value on rules which does
not use node_assign().
* ext/socket/socket.c (ipaddr): need not to taint hostnames.
* range.c (range_include): should be based on "<=>", whereas
member? still is based on "each".
* range.c (range_min,range_max): redefine methods based on "<=>".
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2548 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
22010642b2