sparse: use `update_file` instead of `normal` in `refreshwdir`

This is the newer, more semantic API.

Differential Revision: https://phab.mercurial-scm.org/D11152

mercurial/sparse.py

@@ -565,7 +565,7 b' def refreshwdir(repo, origstatus, origsp'
 
     # Fix dirstate
     for file in added:
-        dirstate.normal(file)
+        dirstate.update_file(file, p1_tracked=True, wc_tracked=True)
 
     for file in dropped:
         dirstate.drop(file)