context: use `dirstate.set_tracked` for `revert`
This is the new shiny API.
Differential Revision: https://phab.mercurial-scm.org/D11016
#include <Python.h>
#if PY_MAJOR_VERSION >= 3
#define PYCODETYPE PyObject
#else
#define PYCODETYPE PyCodeObject
#endif
namespace contrib
{
void initpy(const char *cselfpath);
PyObject *pyglobals();
} /* namespace contrib */