update swig on windows

winx64/bin/swigwin-4.0.0/Examples/test-suite/lua/disown_runme.lua

@@ -0,0 +1,20 @@
+require("import")	-- the import fn
+import("disown")	-- import code
+
+-- catch "undefined" global variables
+local env = _ENV -- Lua 5.2
+if not env then env = getfenv () end -- Lua 5.1
+setmetatable(env, {__index=function (t,i) error("undefined global variable `"..i.."'",2) end})
+
+for x=0,100 do
+    a=disown.A()
+    b=disown.B()
+    b:acquire(a)
+end
+collectgarbage() -- this will double delete unless the memory is managed properly
+
+a=disown.A()
+a:__disown()
+b:remove(a)
+a=nil
+collectgarbage() -- this will double delete unless the manual disown call worked