testData/codeInsight/inspections/UndefinedClassExtendedScalar.php

<?php

/**
 * @param <warning descr="Undefined class 'class-string-wrong'">class-string-wrong</warning>
 * @param <warning descr="Undefined class 'class-string-wrong'">class-string-wrong</warning>[]
 * @param <warning descr="Undefined class 'class-string-wrong'">class-string-wrong</warning>[][]
 * @param class-string
 * @param class-string[]
 * @param class-string[][]
 * @param numeric
 * @param numeric-string
 * @param lowercase-string
 * @param non-empty-lowercase-string
 * @param truthy-string
 * @param non-falsy-string
 * @param callable-string
 * @param callable-string
 * @param scalar
 */
function f()
{
    echo 'Hello World!';
}