Add test for final properties

Author: thekid

src/test/php/lang/ast/unittest/parse/MembersTest.class.php

@@ -46,6 +46,14 @@ public function private_instance_property() {
     $this->assertParsed([$class], 'class A { private $a; }');
   }
 
+  #[Test]
+  public function final_instance_property() {
+    $class= new ClassDeclaration([], new IsValue('\\A'), null, [], [], null, null, self::LINE);
+    $class->declare(new Property(['public', 'final'], 'a', new IsLiteral('string'), null, null, null, self::LINE));
+
+    $this->assertParsed([$class], 'class A { public final string $a; }');
+  }
+
   #[Test]
   public function private_instance_properties() {
     $class= new ClassDeclaration([], new IsValue('\\A'), null, [], [], null, null, self::LINE);