feature #23709 [VarDumper] Make dump() variadic (chalasr)

This PR was merged into the 4.0-dev branch.

Discussion
----------

[VarDumper] Make dump() variadic

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Commits
-------

33b737b Make dump() variadic

src/Symfony/Component/VarDumper/Resources/functions/dump.php

@@ -15,9 +15,11 @@
     /**
      * @author Nicolas Grekas <p@tchwork.com>
      */
-    function dump($var)
+    function dump($var, ...$moreVars)
     {
-        foreach (func_get_args() as $var) {
+        VarDumper::dump($var);
+
+        foreach ($moreVars as $var) {
             VarDumper::dump($var);
         }
     }