Add test case for Lua __getitem + inheritance

Examples/test-suite/lua/Makefile.in

@@ -14,6 +14,7 @@ top_builddir = @top_builddir@
 
 CPP_TEST_CASES += \
 	lua_no_module_global \
+	lua_inherit_getitem  \
 
 
 C_TEST_CASES += \

Examples/test-suite/lua/lua_inherit_getitem_runme.lua

@@ -0,0 +1,12 @@
+require("import")	-- the import fn
+import("lua_inherit_getitem")	-- import lib
+
+local t = lua_inherit_getitem;
+local base = t.CBase()
+local derived = t.CDerived()
+
+assert(base.Foo ~= nil)
+assert(base:Foo() == "CBase::Foo")
+assert(derived.Foo == base.Foo)
+assert(derived:Foo() == "CBase::Foo")
+

Examples/test-suite/lua_inherit_getitem.i

@@ -0,0 +1,19 @@
+%module lua_inherit_getitem
+
+%inline %{
+
+class CBase {
+public:
+  const char* Foo(void) {
+    return "CBase::Foo";
+  }
+};
+
+class CDerived : public CBase {
+public:
+  void *__getitem(const char *name) const {
+    return NULL;
+  }
+};
+
+%}