[glibmm] Fix some TODO comments requiring ABI break

[Kjell Ahlstedt <kjellahl src gnome org>]

commit f8e1885a493c76c1d03bac408fb3286858efb968
Author: Kjell Ahlstedt <kjell ahlstedt bredband net>
Date:   Tue Dec 27 15:30:49 2016 +0100

    Fix some TODO comments requiring ABI break
    
    * gio/src/gio_vfuncs.defs: Add GAsyncResult::is_tagged():
    * gio/src/action.hg: get_state_hint_variant() returns VariantContainerBase.
    * gio/src/actiongroup.hg: Remove the deprecated get_action_state_hint().
    * gio/src/asyncresult.hg: Add is_tagged_vfunc().
    * glib/src/checksum.hg: update(): The length parameter is a gssize.

 gio/src/action.hg       |    5 +----
 gio/src/actiongroup.hg  |    3 ---
 gio/src/asyncresult.hg  |   11 ++++-------
 gio/src/gio_vfuncs.defs |    8 ++++++++
 glib/src/checksum.hg    |    5 +----
 5 files changed, 14 insertions(+), 18 deletions(-)
---
diff --git a/gio/src/action.hg b/gio/src/action.hg
index ffff582..b9b5993 100644
--- a/gio/src/action.hg
+++ b/gio/src/action.hg
@@ -102,10 +102,7 @@ public:
   template <typename T_Value>
   void get_state_hint(T_Value& value) const;
 
-  //TODO: When we can break ABI, Return a Glib::VariantContainerBase,
-  // as we already do for ActionGroup::get_action_state_hint(),
-  // because that is what this returns (to specify a range).
-  _WRAP_METHOD(Glib::VariantBase get_state_hint_variant() const, g_action_get_state_hint)
+  _WRAP_METHOD(Glib::VariantContainerBase get_state_hint_variant() const, g_action_get_state_hint)
 
   _WRAP_METHOD(bool get_enabled() const, g_action_get_enabled)
 
diff --git a/gio/src/actiongroup.hg b/gio/src/actiongroup.hg
index 5877e20..6d250ba 100644
--- a/gio/src/actiongroup.hg
+++ b/gio/src/actiongroup.hg
@@ -75,9 +75,6 @@ public:
   _WRAP_METHOD(Glib::VariantType get_action_parameter_type(const Glib::ustring& action_name) const, 
g_action_group_get_action_parameter_type)
   _WRAP_METHOD(Glib::VariantType get_action_state_type(const Glib::ustring& action_name) const, 
g_action_group_get_action_state_type)
 
-
-  _WRAP_METHOD(Glib::VariantContainerBase get_action_state_hint(const Glib::ustring& action_name) const, 
g_action_group_get_action_state_hint, deprecated "Use the get_action_state() method that takes an output 
parameter instead.")
-
   //TODO: How do we check for a nullptr Variant?
   /**
    * Requests a hint about the valid range of values for the state of the
diff --git a/gio/src/asyncresult.hg b/gio/src/asyncresult.hg
index 31b6a15..f0d2d68 100644
--- a/gio/src/asyncresult.hg
+++ b/gio/src/asyncresult.hg
@@ -117,15 +117,12 @@ public:
 
   _WRAP_METHOD(bool is_tagged(gpointer source_tag) const, g_async_result_is_tagged)
 
-
-  // TODO: For some reason, the compiler cannot find an unwrap() for ObjectBase.
+  // The compiler cannot find an unwrap() for ObjectBase, because
+  // ObjectBase::BaseObjectType is not declared.
   //#m4 _CONVERSION(`Glib::RefPtr<Glib::ObjectBase>',`GObject*',__CONVERT_REFPTR_TO_P)
 #m4 _CONVERSION(`Glib::RefPtr<Glib::ObjectBase>',`GObject*',`unwrap_objectbase_custom($3)')
-  _WRAP_VFUNC(Glib::RefPtr<Glib::ObjectBase> get_source_object(),
-              "get_source_object")
-
-  //TODO: is_tagged() vfunc when we can break ABI.
+  _WRAP_VFUNC(Glib::RefPtr<Glib::ObjectBase> get_source_object(), "get_source_object")
+  _WRAP_VFUNC(bool is_tagged(gpointer source_tag), "is_tagged")
 };
 
 } // namespace Gio
-
diff --git a/gio/src/gio_vfuncs.defs b/gio/src/gio_vfuncs.defs
index 116b003..f8c94da 100644
--- a/gio/src/gio_vfuncs.defs
+++ b/gio/src/gio_vfuncs.defs
@@ -359,6 +359,14 @@
   (return-type "GObject*")
 )
 
+(define-vfunc is_tagged
+  (of-object "GAsyncResult")
+  (return-type "gboolean")
+ (parameters
+  '("gpointer" "source_tag")
+ )
+)
+
 ; GBufferedInputStream
 
 (define-vfunc fill
diff --git a/glib/src/checksum.hg b/glib/src/checksum.hg
index 26770dd..b3a5555 100644
--- a/glib/src/checksum.hg
+++ b/glib/src/checksum.hg
@@ -61,9 +61,7 @@ public:
 
   _WRAP_METHOD(void reset(), g_checksum_reset)
 
-  //TODO: length should really be gssize, not gsize, when we can break ABI:
-#m4 _CONVERSION(`gsize',`gssize',`(gssize)($3)')
-  _WRAP_METHOD(void update(const guchar* data, gsize length), g_checksum_update)
+  _WRAP_METHOD(void update(const guchar* data, gssize length), g_checksum_update)
 
   /** Feeds data into an existing Checksum.
    * The checksum must still be open, that is get_string() or get_digest() must not have been called on the 
checksum.
@@ -99,4 +97,3 @@ public:
 };
 
 } //namespace Glib
-