Add test cases for attributes and doc comments on trait constants

Author: sj-i

Zend/tests/traits/constant_020.phpt

@@ -0,0 +1,28 @@
+--TEST--
+Attributes can be retrieved from trait constants
+--FILE--
+<?php
+
+class TestAttribute {
+    public function __construct(public string $value) {}
+}
+
+trait TestTrait {
+  #[TestAttribute(value: 123)]
+  public const Constant = 42;
+}
+
+class TestClass {
+  use TestTrait;
+}
+
+$reflection = new \ReflectionClass(TestTrait::class);
+var_dump($reflection->getReflectionConstant('Constant')->getAttributes('TestAttribute')[0]->getArguments()['value']);
+
+$reflection = new \ReflectionClass(TestClass::class);
+var_dump($reflection->getReflectionConstant('Constant')->getAttributes('TestAttribute')[0]->getArguments()['value']);
+
+?>
+--EXPECTF--
+int(123)
+int(123)

Zend/tests/traits/constant_021.phpt

@@ -0,0 +1,24 @@
+--TEST--
+Doc comments can be retrieved from trait constants
+--FILE--
+<?php
+
+trait TestTrait {
+  /** DocComments */
+  public const Constant = 42;
+}
+
+class TestClass {
+  use TestTrait;
+}
+
+$reflection = new \ReflectionClass(TestTrait::class);
+var_dump($reflection->getReflectionConstant('Constant')->getDocComment());
+
+$reflection = new \ReflectionClass(TestClass::class);
+var_dump($reflection->getReflectionConstant('Constant')->getDocComment());
+
+?>
+--EXPECTF--
+string(18) "/** DocComments */"
+string(18) "/** DocComments */"