Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
  Fix #66783: UAF when appending DOMDocument to element

diff --cc NEWS
index fa1bf056eb61760c53d31f24508064cfcc880134,0584f6504c2b8abdaba2669b81568daac2d7272a..0da6240423a786a5b86fb000c54e8ae68597dd24
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -1,19 -1,16 +1,22 @@@
  PHP                                                                        NEWS
  |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 -?? ??? 2021, PHP 7.4.18
 +?? ??? 2021, PHP 8.0.5
  
 -01 Apr 2021, PHP 7.4.17
+ - DOM:
+   . Fixed bug #66783 (UAF when appending DOMDocument to element). (cmb)
+ 
 +- FFI:
 +  . Fixed bug #80847 (CData structs with fields of type struct can't be passed
 +    as C function argument). (Nickolas Daniel da Silva, Dmitry)
 +
 +01 Apr 2021, PHP 8.0.4
  
  - Core:
 -  . Fixed bug #80781 (Error handler that throws ErrorException infinite loop).
 -    (Nikita)
    . Fixed bug #75776 (Flushing streams with compression filter is broken). (cmb)
 +  . Fixed bug #80811 (Function exec without $output but with $restult_code
 +    parameter crashes). (Nikita)
 +  . Fixed bug #80814 (threaded mod_php won't load on FreeBSD: No space
 +    available for static Thread Local Storage). (Dmitry)
  
  - Dba:
    . Fixed bug #80817 (dba_popen() may cause segfault during RSHUTDOWN). (cmb)

diff --cc ext/dom/php_dom.c
Simple merge