Verify both short (fn) and long (function) closures work

Author: thekid

src/test/php/lang/ast/unittest/emit/InitializeWithExpressionsTest.class.php

@@ -27,26 +27,26 @@ private function expressions() {
   }
 
   #[Test, Values('expressions')]
-  public function property($code, $expected) {
+  public function property($declaration, $expected) {
     Assert::equals($expected, $this->run(sprintf('use lang\ast\unittest\emit\Handle; class <T> {
       const INITIAL= "initial";
       private $h= %s;
 
       public function run() {
         return $this->h;
       }
-    }', $code)));
+    }', $declaration)));
   }
 
-  #[Test]
-  public function using_functions() {
-    $r= $this->run('class <T> {
-      private $h= fn($arg) => $arg->redirect(1);
+  #[Test, Values(['fn($arg) => $arg->redirect(1)', 'function($arg) { return $arg->redirect(1); }'])]
+  public function using_closures($declaration) {
+    $r= $this->run(sprintf('class <T> {
+      private $h= %s;
 
       public function run() {
         return $this->h;
       }
-    }');
+    }', $declaration));
     Assert::equals(new Handle(1), $r(new Handle(0)));
   }
 
@@ -62,7 +62,6 @@ public function run() {
     Assert::equals(new Handle(1), $r->pipe(new Handle(0)));
   }
 
-
   #[Test]
   public function property_initialization_accessible_inside_constructor() {
     $r= $this->run('use lang\ast\unittest\emit\Handle; class <T> {