docwriter: Handle moved_to in underscore function

This function was failing on g_iconv() which has a blank name in the GIR
file (its name instead coming from the moved-to attribute.)

1 files changed, 2 insertions, 0 deletions

diff --git a/giscanner/docwriter.py b/giscanner/docwriter.py
index 0d55936c..35ba6f1c 100644
--- a/giscanner/docwriter.py
+++ b/giscanner/docwriter.py
@@ -506,6 +506,8 @@ class DocFormatter(object):
             return node.name.replace('-', '_')
         elif node.name:
             return to_underscores(node.name)
+        elif isinstance(node, ast.Function) and node.moved_to:
+            return to_underscores(node.moved_to)
         elif isinstance(node, ast.Callback):
             return 'callback'
         elif isinstance(node, ast.Union):