[gtkmm] Gtk::TextView: Let get_iter_at_[location|position]() return bool

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 2e5931cdf8ea5751440cd6b6e2253d29d5ce36f9
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Sun Sep 24 16:38:24 2017 +0200

    Gtk::TextView: Let get_iter_at_[location|position]() return bool
    
    gtk_text_view_get_iter_at_location() and gtk_text_view_get_iter_at_position()
    return gboolean, but no GError.

 gtk/src/textview.hg |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gtk/src/textview.hg b/gtk/src/textview.hg
index 14b837c..001d954 100644
--- a/gtk/src/textview.hg
+++ b/gtk/src/textview.hg
@@ -125,10 +125,10 @@ public:
     Gdk::Rectangle& strong, Gdk::Rectangle& weak) const, gtk_text_view_get_cursor_locations)
 
   _WRAP_METHOD(void get_iter_location(const TextBuffer::const_iterator&  iter, Gdk::Rectangle& location) 
const, gtk_text_view_get_iter_location)
-  _WRAP_METHOD(void get_iter_at_location(TextBuffer::iterator& iter, int x, int y), 
gtk_text_view_get_iter_at_location)
-  _WRAP_METHOD(void get_iter_at_location(TextBuffer::const_iterator& iter, int x, int y) const, 
gtk_text_view_get_iter_at_location)
-  _WRAP_METHOD(void get_iter_at_position(TextBuffer::iterator& iter, int& trailing, int x, int y), 
gtk_text_view_get_iter_at_position)
-  _WRAP_METHOD(void get_iter_at_position(TextBuffer::const_iterator& iter, int& trailing, int x, int y) 
const, gtk_text_view_get_iter_at_position)
+  _WRAP_METHOD(bool get_iter_at_location(TextBuffer::iterator& iter, int x, int y), 
gtk_text_view_get_iter_at_location)
+  _WRAP_METHOD(bool get_iter_at_location(TextBuffer::const_iterator& iter, int x, int y) const, 
gtk_text_view_get_iter_at_location)
+  _WRAP_METHOD(bool get_iter_at_position(TextBuffer::iterator& iter, int& trailing, int x, int y), 
gtk_text_view_get_iter_at_position)
+  _WRAP_METHOD(bool get_iter_at_position(TextBuffer::const_iterator& iter, int& trailing, int x, int y) 
const, gtk_text_view_get_iter_at_position)
   _WRAP_METHOD(void get_line_yrange(const TextBuffer::const_iterator& iter, int& y, int& height) const, 
gtk_text_view_get_line_yrange)
 
   _WRAP_METHOD(void get_line_at_y(TextBuffer::iterator& target_iter, int y, int& line_top), 
gtk_text_view_get_line_at_y)