[io grant] Fix up type graph

I'm assuming this file is maintained by hand and not a script.

Author: zoffixznet

type-graph.txt

@@ -129,16 +129,16 @@ class Instant                       is Cool        does Real
 [Domain-specific]
 # IO
 role  IO
-role  IO::Special
-class IO::Handle                                   does IO
+class IO::Special
+class IO::Handle
 class IO::Pipe                      is IO::Handle
-class IO::Path                      is Cool
+class IO::Path                      is Cool        does IO
 class IO::Path::Unix                is IO::Path
 class IO::Path::Win32               is IO::Path
 class IO::Path::Cygwin              is IO::Path
 class IO::Path::QNX                 is IO::Path
 class IO::ArgFiles                  is IO::Handle
-role  IO::Socket                                   does IO
+role  IO::Socket
 class IO::Socket::INET                             does IO::Socket
 class IO::Socket::Async
 class IO::Spec