vcs: access changeset status "struct" members - hg 5.3 will drop indexed access

kallithea/lib/vcs/backends/hg/changeset.py

@@ -386,21 +386,21 b' class MercurialChangeset(BaseChangeset):'
         """
         Returns list of added ``FileNode`` objects.
         """
-        return AddedFileNodesGenerator([n for n in self.status[1]], self)
+        return AddedFileNodesGenerator([n for n in self.status.added], self)
 
     @property
     def changed(self):
         """
         Returns list of modified ``FileNode`` objects.
         """
-        return ChangedFileNodesGenerator([n for n in self.status[0]], self)
+        return ChangedFileNodesGenerator([n for n in self.status.modified], self)
 
     @property
     def removed(self):
         """
         Returns list of removed ``FileNode`` objects.
         """
-        return RemovedFileNodesGenerator([n for n in self.status[2]], self)
+        return RemovedFileNodesGenerator([n for n in self.status.removed], self)
 
     @LazyProperty
     def extra(self):