Support property hooks in promoted parameters

[thekid]

See https://wiki.php.net/rfc/property-hooks#interaction_with_constructor_property_promotion

class User {
  public function __construct(
    public string $username { set => strtolower($value); }
  ) { }
}

---

Requires this patch to the compiler - meaning this is a BC break, and will result in a major release.

diff --git a/src/main/php/lang/ast/emit/PHP.class.php b/src/main/php/lang/ast/emit/PHP.class.php
index 163ff27..742f531 100755
--- a/src/main/php/lang/ast/emit/PHP.class.php
+++ b/src/main/php/lang/ast/emit/PHP.class.php
@@ -763,8 +763,8 @@ abstract class PHP extends Emitter {
     }

     foreach ($promoted as $param) {
-      $this->emitProperty($result, new Property(
-        is_array($param->promote) ? $param->promote : explode(' ', $param->promote),
+      $this->emitProperty($result, $param->promote instanceof Property ? $param->promote : new Property(
+        $param->promote,
         $param->name,
         $param->type
       ));

[thekid]

Released in https://github.com/xp-framework/ast/releases/tag/v13.0.0