* PHP-8.5:
  Core: fix missing deprecation when accessing null array key with JIT (#20883)

* Remove duplicate #include statements across the codebase.

* feat: Restore conditional/unconditional include pairs in lscriu.c

Prior to this patch there was a common read handler, and it relied on
the dom class set in the intern document. However, Dom\Implementation
allows creating DTDs unassociated with a document, so we can't rely on
an intern document and the check fails. This causes the ZVAL_NULL() path
to be taken.
To solve this, just split the handler.

Closes GH-21082.

* PHP-8.4:
  Fix GH-21077: Accessing Dom\Node::baseURI can throw TypeError

* PHP-8.5:
  Fix GH-21077: Accessing Dom\Node::baseURI can throw TypeError

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