[CONTRIB-6256] Codechecker does not detect extra space in class_name::static_method ();

[sarjona]

Make a file test.php containing

<?php

require_once(__DIR__ . '/config.php');
$test = context_system::instance ();

Feed it to code-checker. Note that it does not detect the extra space.

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Reporter: Tim Hunt

Original issue: https://tracker.moodle.org/browse/CONTRIB-6256

[jrchamp]

This is detected in moodle-extra by PSR2.Methods.FunctionCallSignature.SpaceBeforeOpenBracket.