9.7.0: Native clone with, PHP 8.5 fixes

• Changed PHP 8.5 emitter to emit clone with expressions natively now
  that the RFC has been implemented
  (@thekid)
• Fixed the warning Using null as an array offset is deprecated, use an
  empty string instead in PHP 8.5+
  (@thekid)
• Fixed the error Arrow functions on the right hand side of |> must be
  parenthesized - see https://externals.io/message/128473#128554
  (@thekid)

9.6.0: Clone with, PHP 8.5

• Merged PR #185: Implement "clone with", emitting emulating code for
  the expression, callable reference and calls with unpacking; see
  https://wiki.php.net/rfc/clone_with_v2
  (@thekid)
• Merged PR #187: Add PHP 8.5 emitter - @thekid

9.5.0: Pipeline operator

• Merged PR #181: Add support for pipelines with |> and ?|>, see
  https://wiki.php.net/rfc/pipe-operator-v3 and issue #180
  (@thekid)

9.4.0: Final properties

• Merged PR #184: Add support for final properties added in PHP 8.4, see
  https://wiki.php.net/rfc/property-hooks; including parameter promotion,
  see https://wiki.php.net/rfc/final_promotion
  (@thekid)

9.3.3: Callable new fix

• Fixed callable new syntax when using a variable or expression, e.g.
  new $class(...). See also php/php-src#12336
  (@thekid)

9.3.2: Match expressions fix

• Fixed empty match expressions and match expressions with default
  case only in PHP 7
  (@thekid)
• Added tests verifying closures are supported in constant expressions
  https://wiki.php.net/rfc/closures_in_const_expr
  (@thekid)

9.3.1: References & reflection fix

• Fixed private(set) not being implicitely marked as final, see
  https://wiki.php.net/rfc/asymmetric-visibility-v2#inheritance
  (@thekid)
• Fixed enclosing scopes when using references - @thekid

9.3.0: PHP 8.4 emitter

• Fixed checks for property hooks emulation with asymmetric visibility
  (@thekid)
• Added PHP 8.4 emitter which natively emits property hooks and asymmetric
  visibility syntax. This is integration-tested with PHP 8.4.0 Beta 4.
  See https://github.com/php/php-src/blob/php-8.4.0beta4/NEWS
  (@thekid)
• Changed emitter to use native readonly classes in PHP 8.2, fixing an
  inconsistency with accessing undefined properties
  (@thekid)

9.2.0: Asymmetric visibility

• Merged PR #183: Add emitting support for asymmetric visibility. See
  https://wiki.php.net/rfc/asymmetric-visibility-v2, targeted for PHP 8.4
  (@thekid)

9.1.1: Forward compatibility fix

• Forward compatibility with newer xp-framework/ast releases - @thekid