[gobject-introspection] Update glib annotations to 2.64.0

[Rico Tzschichholz <ricotz src gnome org>]

commit 7a500e772466ce5b06de7c9867856731d222d6c3
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Feb 28 08:23:38 2020 +0100

    Update glib annotations to 2.64.0

 gir/gio-2.0.c  | 40 +++++++++++++++++++++++++++++++---------
 gir/glib-2.0.c | 20 ++++++++++++++------
 2 files changed, 45 insertions(+), 15 deletions(-)
---
diff --git a/gir/gio-2.0.c b/gir/gio-2.0.c
index f9df1751..2d4e7bac 100644
--- a/gir/gio-2.0.c
+++ b/gir/gio-2.0.c
@@ -4795,7 +4795,7 @@
  * initialization for all of these in a single place.
  *
  * Regardless of which of these entry points is used to start the
- * application, GApplication passes some "platform data from the
+ * application, GApplication passes some ‘platform data’ from the
  * launching instance to the primary instance, in the form of a
  * #GVariant dictionary mapping strings to variants. To use platform
  * data, override the @before_emit or @after_emit virtual functions
@@ -11570,14 +11570,14 @@
  *
  * It is important to use the proper GVariant format when retrieving
  * the options with g_variant_dict_lookup():
- * - for %G_OPTION_ARG_NONE, use b
- * - for %G_OPTION_ARG_STRING, use &s
- * - for %G_OPTION_ARG_INT, use i
- * - for %G_OPTION_ARG_INT64, use x
- * - for %G_OPTION_ARG_DOUBLE, use d
- * - for %G_OPTION_ARG_FILENAME, use ^ay
- * - for %G_OPTION_ARG_STRING_ARRAY, use &as
- * - for %G_OPTION_ARG_FILENAME_ARRAY, use ^aay
+ * - for %G_OPTION_ARG_NONE, use `b`
+ * - for %G_OPTION_ARG_STRING, use `&s`
+ * - for %G_OPTION_ARG_INT, use `i`
+ * - for %G_OPTION_ARG_INT64, use `x`
+ * - for %G_OPTION_ARG_DOUBLE, use `d`
+ * - for %G_OPTION_ARG_FILENAME, use `^&ay`
+ * - for %G_OPTION_ARG_STRING_ARRAY, use `^a&s`
+ * - for %G_OPTION_ARG_FILENAME_ARRAY, use `^a&ay`
  *
  * Since: 2.40
  */
@@ -13251,6 +13251,13 @@
  *
  * Stops owning a name.
  *
+ * Note that there may still be D-Bus traffic to process (relating to owning
+ * and unowning the name) in the current thread-default #GMainContext after
+ * this function has returned. You should continue to iterate the #GMainContext
+ * until the #GDestroyNotify function passed to g_bus_own_name() is called, in
+ * order to avoid memory leaks through callbacks queued on the #GMainContext
+ * after it’s stopped being iterated.
+ *
  * Since: 2.26
  */
 
@@ -13261,6 +13268,13 @@
  *
  * Stops watching a name.
  *
+ * Note that there may still be D-Bus traffic to process (relating to watching
+ * and unwatching the name) in the current thread-default #GMainContext after
+ * this function has returned. You should continue to iterate the #GMainContext
+ * until the #GDestroyNotify function passed to g_bus_watch_name() is called, in
+ * order to avoid memory leaks through callbacks queued on the #GMainContext
+ * after it’s stopped being iterated.
+ *
  * Since: 2.26
  */
 
@@ -16403,6 +16417,14 @@
  *
  * Unsubscribes from signals.
  *
+ * Note that there may still be D-Bus traffic to process (relating to this
+ * signal subscription) in the current thread-default #GMainContext after this
+ * function has returned. You should continue to iterate the #GMainContext
+ * until the #GDestroyNotify function passed to
+ * g_dbus_connection_signal_subscribe() is called, in order to avoid memory
+ * leaks through callbacks queued on the #GMainContext after it’s stopped being
+ * iterated.
+ *
  * Since: 2.26
  */
 
diff --git a/gir/glib-2.0.c b/gir/glib-2.0.c
index cb671c7a..76876983 100644
--- a/gir/glib-2.0.c
+++ b/gir/glib-2.0.c
@@ -633,6 +633,9 @@
  * to iterate over the elements of a #GHashTable. GHashTableIter
  * structures are typically allocated on the stack and then initialized
  * with g_hash_table_iter_init().
+ *
+ * The iteration order of a #GHashTableIter over the keys/values in a hash
+ * table is not defined.
  */
 
 
@@ -5746,11 +5749,7 @@
  *   |[<!-- language="C" -->
  *   #define G_SPAWN_ERROR g_spawn_error_quark ()
  *
- *   GQuark
- *   g_spawn_error_quark (void)
- *   {
- *       return g_quark_from_static_string ("g-spawn-error-quark");
- *   }
+ *   G_DEFINE_QUARK (g-spawn-error-quark, g_spawn_error)
  *   ]|
  *
  * - The quark function for the error domain is called
@@ -6466,7 +6465,9 @@
  *
  * To call a function for each key and value pair use
  * g_hash_table_foreach() or use an iterator to iterate over the
- * key/value pairs in the hash table, see #GHashTableIter.
+ * key/value pairs in the hash table, see #GHashTableIter. The iteration order
+ * of a hash table is not defined, and you must not rely on iterating over
+ * keys/values in the same order as they were inserted.
  *
  * To destroy a #GHashTable use g_hash_table_destroy().
  *
@@ -17352,6 +17353,9 @@
  * items). To remove all items matching a predicate, use
  * g_hash_table_foreach_remove().
  *
+ * The order in which g_hash_table_foreach() iterates over the keys/values in
+ * the hash table is not defined.
+ *
  * See g_hash_table_find() for performance caveats for linear
  * order searches in contrast to g_hash_table_lookup().
  */
@@ -17512,6 +17516,10 @@
  * Initializes a key/value pair iterator and associates it with
  * @hash_table. Modifying the hash table after calling this function
  * invalidates the returned iterator.
+ *
+ * The iteration order of a #GHashTableIter over the keys/values in a hash
+ * table is not defined.
+ *
  * |[<!-- language="C" -->
  * GHashTableIter iter;
  * gpointer key, value;