obsmarker: add a `flags` method

We introduce a proper method to access the flag information.

mercurial/cmdutil.py

@@ -1184,7 +1184,7 b' def showmarker(ui, marker):'
     for repl in marker.succnodes():
         ui.write(' ')
         ui.write(hex(repl))
-    ui.write(' %X ' % marker._data[2])
+    ui.write(' %X ' % marker.flags())
     ui.write('{%s}' % (', '.join('%r: %r' % t for t in
                                  sorted(marker.metadata().items()))))
     ui.write('\n')

mercurial/obsolete.py

@@ -226,6 +226,10 b' class marker(object):'
         parts = self.metadata()['date'].split(' ')
         return (float(parts[0]), int(parts[1]))
 
+    def flags(self):
+        """The flags field of the marker"""
+        return self._data[2]
+
 class obsstore(object):
     """Store obsolete markers