misc. compatibility fix

Author: YO4

lib/yamatanooroti/windows/windows-definition.rb

@@ -28,6 +28,7 @@ module Yamatanooroti::WindowsDefinition
 
   Fiddle::SIZEOF_DWORD = Fiddle::SIZEOF_LONG
   Fiddle::SIZEOF_WORD = Fiddle::SIZEOF_SHORT
+  Fiddle::SIZEOF_ULONG = Fiddle::SIZEOF_LONG if !Fiddle.const_defined?(:SIZEOF_ULONG)
 
   COORD = struct [
     'SHORT X',

lib/yamatanooroti/windows/windows.rb

@@ -32,7 +32,7 @@ module Yamatanooroti::WindowsTermMixin
   end
 
   module_function def get_pipename(title, suffix = nil)
-    "yamatanooroti_#{self.testcase_title(title)}#{suffix ? ":#{suffix}" : ""}"
+    "yamatanooroti_#{testcase_title(title)}#{suffix ? ":#{suffix}" : ""}"
   end
 
   private def get_pid_from_pipe(pipehandle)