Add failing test for TernaryToElvisOperatorFixer

[jrmajor]

Original bug report: #5533 (comment)

I don't know how to fix this, but I've created a test that reproduces the #5533 issue. It does not fail, but times out and is marked as risky:

There was 1 risky test:

1) PhpCsFixer\Tests\Fixer\Operator\TernaryToElvisOperatorFixerTest::test80DoNotFix with data set #0 ('<?php\n\nfunction test(#[Test...) {}\n')
Execution aborted after 10 seconds

[coveralls]

Coverage remained the same at 91.851% when pulling d497213 on jrmajor:test-5533 into 9bf2760 on FriendsOfPHP:2.18.

[kubawerlos]

Replaced by #5596

Thanks @jrmajor, I've cherry picked your test to that PR.