Merge branch 'PHP-8.0' into master

diff --cc ext/date/lib/parse_date.c
index 99c6d11cced19bbaaa8ff8060afae099459c9c1d,e8154ca0683b6d1947c6a5fc49f80a336a4b71dd..0444802778aef6975c3c43ad57978cc465696fc3
--- 1/ext/date/lib/parse_date.c
--- 2/ext/date/lib/parse_date.c
+++ b/ext/date/lib/parse_date.c
@@@ -1,4 -1,4 +1,4 @@@
- /* Generated by re2c 2.0.3 on Mon Aug 31 12:21:15 2020 */
 -/* Generated by re2c 0.15.3 on Mon Dec 21 10:30:58 2020 */
++/* Generated by re2c 0.15.3 on Mon Dec 21 10:32:00 2020 */
  #line 1 "parse_date.re"
  /*
   * The MIT License (MIT)

diff --cc ext/date/lib/parse_iso_intervals.c
index fe17d3d22a35599556a71cc6a56f060887a34bb7,c79a42b87ab67dbca1ca57e77c1fb184c64e8937..202e5bf41da1e2d0b7f490ee5aded6143a11eb80
--- 1/ext/date/lib/parse_iso_intervals.c
--- 2/ext/date/lib/parse_iso_intervals.c
+++ b/ext/date/lib/parse_iso_intervals.c
@@@ -1,4 -1,4 +1,4 @@@
- /* Generated by re2c 2.0.3 on Mon Aug 31 12:21:19 2020 */
 -/* Generated by re2c 0.15.3 on Mon Dec 21 10:30:56 2020 */
++/* Generated by re2c 0.15.3 on Mon Dec 21 10:32:02 2020 */
  #line 1 "parse_iso_intervals.re"
  /*
   * The MIT License (MIT)