Adding upstream version 2.52.6.

Signed-off-by: Daniel Baumann <daniel@debian.org>

internal/go-ole/iunknown_func.go

@@ -0,0 +1,19 @@
+//go:build !windows
+
+package ole
+
+func reflectQueryInterface(self interface{}, method uintptr, interfaceID *GUID, obj interface{}) (err error) {
+	return NewError(E_NOTIMPL)
+}
+
+func queryInterface(unk *IUnknown, iid *GUID) (disp *IDispatch, err error) {
+	return nil, NewError(E_NOTIMPL)
+}
+
+func addRef(unk *IUnknown) int32 {
+	return 0
+}
+
+func release(unk *IUnknown) int32 {
+	return 0
+}