Extractor: supports promoted parameters [Closes #103]

Author: dg

src/PhpGenerator/Extractor.php

@@ -390,7 +390,10 @@ private function setupFunction(GlobalFunction|Method $function, Node\FunctionLik
 		$function->setReturnReference($node->returnsByRef());
 		$function->setReturnType($node->getReturnType() ? $this->toPhp($node->getReturnType()) : null);
 		foreach ($node->getParams() as $item) {
-			$param = $function->addParameter($item->var->name);
+			$visibility = $this->toVisibility($item->flags);
+			$param = $visibility
+				? ($function->addPromotedParameter($item->var->name))->setVisibility($visibility)
+				: $function->addParameter($item->var->name);
 			$param->setType($item->type ? $this->toPhp($item->type) : null);
 			$param->setReference($item->byRef);
 			$function->setVariadic($item->variadic);

tests/PhpGenerator/expected/Extractor.classes.80.expect

@@ -6,8 +6,11 @@ namespace Abc;
 
 class Class8
 {
-	public function __construct($a, int|string $b = 10, $c = null)
-	{
+	public function __construct(
+		public $a,
+		private int|string $b = 10,
+		$c = null,
+	) {
 	}
 }