Log Message:
devel/php-xdebug: update to 3.0.1

pkgsrc change: Switch to use PHP_VERSIONS_INCOMPATIBLE.

3.0.1 (2020-12-04)

= Fixed bugs:

- Fixed issue #1893: Crash with ext-fiber and xdebug.mode=coverage
- Fixed issue #1896: Segfault with closures that are not created from user
  code
- Fixed issue #1897: Crash when removing a breakpoint
- Fixed issue #1900: Update README and add run-xdebug-tests.php to package
- Fixed issue #1901: Stack traces are shown (with a broken time) when
  Xdebug's mode includes 'debug' but not 'develop' or 'trace'
- Fixed issue #1902: Compillation failure on AIX
- Fixed issue #1903: Constants should always be available, regardless of
  which mode Xdebug is in
- Fixed issue #1904: Profile and trace files using %t or %u do not get the
  right names
- Fixed issue #1905: Debugger does not disable request timeouts

3.0.0 (2020-11-25)

Xdebug 3 includes major changes in functionality compared to Xdebug 2. The
primary way how you turn on functionality is through the new xdebug.mode PHP
configuration setting. This made it possible to massively increase performance
in many of Xdebug's sub systems as Xdebug is now much more conservative in
which hooks are enabled.

Configuration changes, massive performance improvements, and PHP 8 support are
the primary features in Xdebug 3, but there is much more. The upgrade guide
lists the changes in great detail, please read it:

	https://xdebug.org/docs/upgrade_guide