update swig on windows

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

@@ -0,0 +1,19 @@
+require("import")	-- the import fn
+import("abstract_access")	-- 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})
+
+-- trying to instantiate pure virtual classes
+-- should fail
+assert(pcall(abstract_access.A)==false)
+assert(pcall(abstract_access.B)==false)
+assert(pcall(abstract_access.C)==false)
+
+-- instantiate object
+d=abstract_access.D()
+
+--call fn
+assert(d:do_x()==1)