update swig on windows

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

@@ -0,0 +1,28 @@
+require("import")	-- the import fn
+import("extend")	-- import lib into global
+e=extend --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})
+
+base1 = e.Base()
+assert(base1.value == 0)
+base2 = e.Base(10)
+assert(base2.value == 10)
+
+assert(base1:method(5) == 5)
+assert(e.Base.zeroVal() == 0)
+assert(base2:currentValue() == 10)
+assert(base2:extendmethod(7) == 14)
+
+der1 = e.Derived(0)
+assert(der1.value == 0)
+assert(der1:method(5) == 10)
+
+der2 = e.Derived(17)
+assert(der2.value == 34)
+der2.extendval = 200.0
+assert(math.abs(der2.actualval - 2.0) < 0.001)
+assert(math.abs(der2.extendval - 200.0) < 0.001)