[libsigc++2] Update tests/.gitignore

[Murray Cumming <murrayc src gnome org>]

commit 528475de0128cf88e70a267e9ed15d163249fea6
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Sep 3 18:18:15 2015 +0200

    Update tests/.gitignore

 tests/.gitignore |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/tests/.gitignore b/tests/.gitignore
index ae37e75..be803fc 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -22,9 +22,12 @@
 /test_retype
 /test_retype_return
 /test_signal
+/test_signal_move
 /test_size
 /test_slot
+/test_slot_move
 /test_slot_disconnect
 /test_trackable
+/test_trackable_move
 /test_track_obj
 /test_visit_each