Fix all Sphinx reference warnings in the documentation (meta issue)

This supersedes the previous closed issue for this: https://github.com/python/cpython/issues/101100

I have created several sub-issues (see table below) to split the work up and avoid what happened the last time. This is the meta issue for this task, any general discussion on this topic should go here, not on the sub-issues, and vice-versa.

In each of the issues, I've added the current list of warnings. Note that the warnings themselves, and their line numbers may change.

There are some warnings that come up with no file:

<unknown>:922: c:type reference target not found: PyWeakReference [ref.type]
<unknown>:956: c:data reference target not found: Py_FileSystemDefaultEncodeErrors [ref.data]
<unknown>:957: c:data reference target not found: Py_FileSystemDefaultEncoding [ref.data]
<unknown>:970: c:data reference target not found: Py_HasFileSystemDefaultEncoding [ref.data]
<unknown>:1026: c:data reference target not found: Py_UTF8Mode [ref.data]
<unknown>:1037: c:type reference target not found: Py_intptr_t [ref.type]
<unknown>:1141: c:type reference target not found: Py_uintptr_t [ref.type]
<unknown>:1168: c:type reference target not found: ssizessizeargfunc [ref.type]
<unknown>:1169: c:type reference target not found: ssizessizeobjargproc [ref.type]
<unknown>:1170: c:type reference target not found: symtable [ref.type]

Linked PRs

• gh-153086

Start by opening the sub-issues referenced in the meta issue and reviewing their current warning lists; the warnings and line numbers may change. Work through the listed reference warnings, including the no-file targets, and consider the work done when the Sphinx documentation build reports no remaining reference warnings.