[gnome-mahjongg] Do not create new fundamental types

[Michael Catanzaro <mcatanzaro src gnome org>]

commit a8bace9285eda18540fa0ad92dfe7d6f6aa0f631
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Tue Jun 24 08:42:01 2014 -0500

    Do not create new fundamental types

 src/game.vala    |    6 +++---
 src/history.vala |    4 ++--
 src/map.vala     |    6 +++---
 3 files changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/src/game.vala b/src/game.vala
index 85a3145..751d30e 100644
--- a/src/game.vala
+++ b/src/game.vala
@@ -8,7 +8,7 @@
  * license.
  */
 
-public class Tile
+public class Tile : Object
 {
     public int number;
     public Slot slot;
@@ -48,7 +48,7 @@ private static bool switch_tiles (Tile a, Tile b)
     return false;
 }
 
-public class Match
+public class Match : Object
 {
     public Tile tile0;
     public Tile tile1;
@@ -60,7 +60,7 @@ public class Match
     }
 }
 
-public class Game
+public class Game : Object
 {
     public Map map;
     public List<Tile> tiles = null;
diff --git a/src/history.vala b/src/history.vala
index e6e0ad7..1146f01 100644
--- a/src/history.vala
+++ b/src/history.vala
@@ -8,7 +8,7 @@
  * license.
  */
 
-public class History
+public class History : Object
 {
     public string filename;
     public List<HistoryEntry> entries;
@@ -97,7 +97,7 @@ public class History
     }
 }
 
-public class HistoryEntry
+public class HistoryEntry : Object
 {
     public DateTime date;
     public string name;
diff --git a/src/map.vala b/src/map.vala
index 8b4ad58..783d1c8 100644
--- a/src/map.vala
+++ b/src/map.vala
@@ -8,7 +8,7 @@
  * license.
  */
 
-public class Slot
+public class Slot : Object
 {
     public int x;
     public int y;
@@ -40,7 +40,7 @@ private static int compare_slots (Slot a, Slot b)
     return 0;
 }
 
-public class Map
+public class Map : Object
 {
     public string? name = null;
     public string? score_name = null;
@@ -243,7 +243,7 @@ public class Map
     }
 }
 
-public class MapLoader
+public class MapLoader : Object
 {
     public List<Map> maps = null;
     private Map map;