update swig on windows

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

@@ -0,0 +1,29 @@
+require("import")	-- the import fn
+import("extend_variable")	-- import lib into global
+ev=extend_variable --alias
+
+-- catching undefined 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})
+
+e1 = ev.ExtendMe()
+answ = 1.0
+assert(e1:set(7.0))
+--assert(e1:get(answ)) -- doesn't work. Lua can't pass primitive type by non-const reference
+--assert(answ == 7.0)
+
+e1.ExtendVar = 5.0
+assert(e1.ExtendVar == 5.0)
+
+assert(ev.Foo.Bar == 42)
+assert(ev.Foo.AllBarOne == 4422)
+
+assert(ev.Foo.StaticInt == 1111)
+ev.Foo.StaticInt = 3333
+assert(ev.Foo.StaticInt == 3333)
+
+assert(ev.Foo.StaticConstInt == 2222)
+
+b1 = ev.Bar()
+assert(b1.x == 1)