[gobject-introspection] Update glib annotations

[Christoph Reiter <creiter src gnome org>]

commit 45899ed068735afb9a6a59629e85f7c022073d9e
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Sun Dec 16 16:02:33 2018 +0100

    Update glib annotations

 gir/gio-2.0.c  | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 gir/glib-2.0.c |  8 +++++++-
 2 files changed, 67 insertions(+), 1 deletion(-)
---
diff --git a/gir/gio-2.0.c b/gir/gio-2.0.c
index 4de9e6e2..87a9db7d 100644
--- a/gir/gio-2.0.c
+++ b/gir/gio-2.0.c
@@ -30770,6 +30770,64 @@
  */
 
 
+/**
+ * g_resolver_lookup_by_name_with_flags:
+ * @resolver: a #GResolver
+ * @hostname: the hostname to look up
+ * @flags: extra #GResolverNameLookupFlags for the lookup
+ * @cancellable: (nullable): a #GCancellable, or %NULL
+ * @error: (nullable): return location for a #GError, or %NULL
+ *
+ * This differs from g_resolver_lookup_by_name() in that you can modify
+ * the lookup behavior with @flags. For example this can be used to limit
+ * results with #G_RESOLVER_NAME_LOOKUP_FLAGS_IPV4_ONLY.
+ *
+ * Returns: (element-type GInetAddress) (transfer full): a non-empty #GList
+ * of #GInetAddress, or %NULL on error. You
+ * must unref each of the addresses and free the list when you are
+ * done with it. (You can use g_resolver_free_addresses() to do this.)
+ * Since: 2.60
+ */
+
+
+/**
+ * g_resolver_lookup_by_name_with_flags_async:
+ * @resolver: a #GResolver
+ * @hostname: the hostname to look up the address of
+ * @flags: extra #GResolverNameLookupFlags for the lookup
+ * @cancellable: (nullable): a #GCancellable, or %NULL
+ * @callback: (scope async): callback to call after resolution completes
+ * @user_data: (closure): data for @callback
+ *
+ * Begins asynchronously resolving @hostname to determine its
+ * associated IP address(es), and eventually calls @callback, which
+ * must call g_resolver_lookup_by_name_with_flags_finish() to get the result.
+ * See g_resolver_lookup_by_name() for more details.
+ *
+ * Since: 2.60
+ */
+
+
+/**
+ * g_resolver_lookup_by_name_with_flags_finish:
+ * @resolver: a #GResolver
+ * @result: the result passed to your #GAsyncReadyCallback
+ * @error: return location for a #GError, or %NULL
+ *
+ * Retrieves the result of a call to
+ * g_resolver_lookup_by_name_with_flags_async().
+ *
+ * If the DNS resolution failed, @error (if non-%NULL) will be set to
+ * a value from #GResolverError. If the operation was cancelled,
+ * @error will be set to %G_IO_ERROR_CANCELLED.
+ *
+ * Returns: (element-type GInetAddress) (transfer full): a #GList
+ * of #GInetAddress, or %NULL on error. See g_resolver_lookup_by_name()
+ * for more details.
+ * Since: 2.60
+ */
+
+
 /**
  * g_resolver_lookup_records:
  * @resolver: a #GResolver
@@ -33574,6 +33632,8 @@
  * Asynchronously retrieves the next #GSocketAddress from @enumerator
  * and then calls @callback, which must call
  * g_socket_address_enumerator_next_finish() to get the result.
+ *
+ * It is an error to call this multiple times before the previous callback has finished.
  */
 
 
diff --git a/gir/glib-2.0.c b/gir/glib-2.0.c
index 43fc6ef7..c70f2746 100644
--- a/gir/glib-2.0.c
+++ b/gir/glib-2.0.c
@@ -9838,7 +9838,8 @@
  * @base that is within inclusive bounds limited by @min and @max. If
  * this is true, then the converted number is stored in @out_num. An
  * empty string is not a valid input. A string with leading or
- * trailing whitespace is also an invalid input.
+ * trailing whitespace is also an invalid input. A string with a leading sign
+ * (`-` or `+`) is not a valid input for the unsigned parser.
  *
  * @base can be between 2 and 36 inclusive. Hexadecimal numbers must
  * not be prefixed with "0x" or "0X". Such a problem does not exist
@@ -9958,6 +9959,11 @@
  * changing the current locale, since that would not be
  * thread-safe.
  *
+ * Note that input with a leading minus sign (`-`) is accepted, and will return
+ * the negation of the parsed number, unless that would overflow a #guint64.
+ * Critically, this means you cannot assume that a short fixed length input will
+ * never result in a low return value, as the input could have a leading `-`.
+ *
  * This function is typically used when reading configuration
  * files or other non-user input that should be locale independent.
  * To handle input from the user you should normally use the