[gobject-introspection] Allow for methods in GLib

[Johan Dahlin <johan src gnome org>]

commit 1175ebe5d84bec58acc082c3077af138cad1f54e
Author: Tomeu Vizoso <tomeu vizoso collabora co uk>
Date:   Wed Jun 9 10:26:26 2010 +0200

    Allow for methods in GLib
    
    * girepository/gitypelib.c: Don't complain about constructors
      returning types other than objects or interfaces if the container
      type isn't an object or interface itself.
    
    * giscanner/glibtransformer.py: Don't give up parsing a method just
      because it's in the GLib namespace.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=621069

 girepository/gitypelib.c     |    9 ++++++---
 giscanner/glibtransformer.py |    3 ---
 2 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/girepository/gitypelib.c b/girepository/gitypelib.c
index 1b3f882..6aa3077 100644
--- a/girepository/gitypelib.c
+++ b/girepository/gitypelib.c
@@ -832,13 +832,16 @@ validate_function_blob (ValidateContext *ctx,
       iface_type = get_type_blob (typelib, simple, error);
       if (!iface_type)
 	return FALSE;
-      if (!(iface_type->tag == GI_TYPE_TAG_INTERFACE))
+      if (iface_type->tag != GI_TYPE_TAG_INTERFACE &&
+          (container_type == BLOB_TYPE_OBJECT ||
+           container_type == BLOB_TYPE_INTERFACE))
 	{
 	  g_set_error (error,
 		       G_TYPELIB_ERROR,
 		       G_TYPELIB_ERROR_INVALID,
-		       "Invalid return type %d for constructor",
-		       iface_type->tag);
+		       "Invalid return type '%s' for constructor '%s'",
+		       g_type_tag_to_string (iface_type->tag),
+		       get_string_nofail (typelib, blob->symbol));
 	  return FALSE;
 	}
     }
diff --git a/giscanner/glibtransformer.py b/giscanner/glibtransformer.py
index 2e45b13..324a444 100644
--- a/giscanner/glibtransformer.py
+++ b/giscanner/glibtransformer.py
@@ -487,9 +487,6 @@ class GLibTransformer(object):
         # already
         if func.symbol.endswith('_get_type'):
             return None
-        if self._namespace_name == 'GLib':
-            # No GObjects in GLib
-            return None
 
         if not is_method:
             target_arg = func.retval