Add indentation and highlighting test for closure

Author: zonuexe

tests/lang/function/closure.php

@@ -0,0 +1,9 @@
+<?php
+
+is_object(static function () {
+    // ###php-mode-test### ((indent 4))
+});
+
+is_object(static function (): void {
+    // ###php-mode-test### ((indent 4))
+});

tests/lang/function/closure.php.faces

@@ -0,0 +1,23 @@
+;; -*- mode: emacs-lisp -*-
+(("<?php" . php-php-tag)
+ ("\n\n")
+ ("is_object" . php-function-call)
+ ("(")
+ ("static" . php-keyword)
+ (" ")
+ ("function" . php-keyword)
+ (" () {\n    ")
+ ("// " . font-lock-comment-delimiter-face)
+ ("###php-mode-test### ((indent 4))\n" . font-lock-comment-face)
+ ("});\n\n")
+ ("is_object" . php-function-call)
+ ("(")
+ ("static" . php-keyword)
+ (" ")
+ ("function" . php-keyword)
+ (" (): ")
+ ("void" . font-lock-type-face)
+ (" {\n    ")
+ ("// " . font-lock-comment-delimiter-face)
+ ("###php-mode-test### ((indent 4))\n" . font-lock-comment-face)
+ ("});\n"))

tests/php-mode-test.el

@@ -683,6 +683,7 @@ Meant for `php-mode-test-issue-503'."
   (with-php-mode-test ("doc-comment/inheritdoc.php" :faces t))
   (with-php-mode-test ("lang/class/anonymous-class.php" :indent t :magic t :faces t))
   (with-php-mode-test ("lang/function/calls.php" :faces t))
+  (with-php-mode-test ("lang/function/closure.php" :indent t :magic t :faces t))
   (with-php-mode-test ("lang/try-cactch/multiple.php" :faces t))
   (with-php-mode-test ("lang/types/cast.php" :faces t))
   (with-php-mode-test ("lang/types/function.php" :faces t))