[issue37878] Sub-Interpreters : Document PyThreadState_DeleteCurrent()

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

> bpo-38266: Revert bpo-37878: Make PyThreadState_DeleteCurrent() Internal (GH-16558)

Oh, I didn't notice something in the review: the revert moved PyThreadState_DeleteCurrent() definition from Include/pystate.h to Include/cpython/pystate.h. Previously, it was defined in Include/pystate.h, see the commit removing it:
https://github.com/python/cpython/commit/2bc43cdc015eda4f1a651bb2b308a17a83c38e14

Joannah: can you please move the definition back to Include/pystate.h, at the same place it was before the removal, please?

The revert excluded PyThreadState_DeleteCurrent() from the stable API (Py_LIMITED_API).

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versions:  -Python 3.8

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