Fix GApplication for the G_TYPE_VARIANT change

gio/gio-marshal.list

@@ -1,16 +1,17 @@
 VOID:STRING,STRING,STRING,FLAGS
 VOID:STRING,BOXED
+VOID:STRING,VARIANT
 VOID:BOOLEAN,POINTER
 VOID:OBJECT,OBJECT,ENUM
 BOOLEAN:OBJECT,OBJECT
 VOID:STRING,BOXED,BOXED
 BOOL:POINTER,INT
 BOOL:UINT
-BOOL:BOXED
+BOOL:VARIANT
 BOOL:VOID
 VOID:STRING,STRING,BOXED
 VOID:BOOL,BOXED
-VOID:BOXED,BOXED
+VOID:VARIANT,VARIANT
 VOID:INT
 VOID:STRING,INT
 VOID:STRING,UINT