Log Message:
devel/php-xdebug: update to 2.7.2

Update php-xdebug to 2.7.2.

2.7.1	(2019-04-05)

= Fixed bugs:

- Fixed issue #1646: Missing newline in error message
- Fixed issue #1647: Memory corruption when a conditional breakpoint is used
- Fixed issue #1641: Perfomance degradation with getpid syscall (Kees
  Hoekzema)

2.7.2	(2019-05-06)

= Fixed bugs:

- Fixed issue #1488: Rewrite DBGp 'property_set' to always use eval
- Fixed issue #1586: error_reporting()'s return value is incorrect during
  debugger's 'eval' command
- Fixed issue #1615: Turn off Zend OPcache when remote debugger is turned on
- Fixed issue #1656: remote_connect_back alters header if multiple values
  are present
- Fixed issue #1662: __debugInfo should not be used for user-defined classes