Add test case for issue 310

Author: jorissteyn

php-mode-test.el

@@ -612,6 +612,10 @@ style from Drupal."
     (php-mode)
     (should-not (buffer-modified-p))))
 
+(ert-deftest php-mode-test-issue-310 ()
+  "Proper indentation after function with return type."
+  (with-php-mode-test ("issue-310.php" :indent t :magic t)))
+
 ;;; php-mode-test.el ends here
 
 ;; Local Variables:

tests/issue-310.php

@@ -0,0 +1,6 @@
+<?php
+
+function a() : string {
+    return 'world';
+}
+echo 'hello'; // ###php-mode-test### ((indent 0))