Slate yield_fixture decorator for removal in pytest 10

[seifertm]

Schedules the deprecated yield_fixture decorator for removal in pytest 10.

[nicoddemus]

Let's also mention in

pytest/doc/en/deprecations.rst

Lines 420 to 427 in f52ff0c

	The ``yield_fixture`` function/decorator
	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	.. deprecated:: 6.2
	``pytest.yield_fixture`` is a deprecated alias for :func:`pytest.fixture`.
	It has been so for a very long time, so it can be searched/replaced safely.

that the decorator is slated for removal in pytest 10.0

[The-Compiler]

For what it's worth, while I was +1 for removing it, our Backwards Compatibility Policy states:

trivial: APIs that trivially translate to the new mechanism and do not cause problematic changes.

We try to support those indefinitely while encouraging users to switch to newer or better mechanisms through documentation.

So I suppose this is technically going against that documented policy.

[seifertm]

For what it's worth, while I was +1 for removing it, our Backwards Compatibility Policy states:

trivial: APIs that trivially translate to the new mechanism and do not cause problematic changes.
We try to support those indefinitely while encouraging users to switch to newer or better mechanisms through documentation.

So I suppose this is technically going against that documented policy.

Interesting, thanks for pointing that out. I wasn't aware of this.

I do recognize that indefinitely is a very long time, though :)