rawdata: update callers in repository

We update callers incrementally because this help bisecting failures. This was
useful during development, so we expect it might be useful again in the future.

mercurial/repository.py

@@ -1202,7 +1202,7 b' class imanifeststorage(interfaceutil.Int'
     def rawsize(rev):
         """Obtain the size of tracked data.
 
-        Is equivalent to ``len(m.revision(node, raw=True))``.
+        Is equivalent to ``len(m.rawdata(node))``.
 
         TODO this method is only used by upgrade code and may be removed.
         """