Several occurences of setTimeout() can be refactored to be passed anonymous functions instead of string literals. This way, they don't trigger the eval()-assertion from Bug 1473549 and the respective files can be removed from the whitelist for this assertion.
The affected files are:

https://searchfox.org/mozilla-central/source/testing/mochitest/tests/SimpleTest/TestRunner.js

https://searchfox.org/mozilla-central/source/testing/marionette/harness/marionette_harness/tests/unit/test_execute_async_script.py

https://searchfox.org/mozilla-central/source/layout/base/tests/chrome/file_bug1018265.xul

https://searchfox.org/mozilla-central/source/toolkit/mozapps/downloads/HelperAppDlg.jsm

Refactor several occurences of setTimeout() to avoid triggering the eval() assertion.

Pushed by nerli@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/9847a8b2005e
Remove several files from eval()-assertion whitelist, r=ckerschb

https://hg.mozilla.org/mozilla-central/rev/9847a8b2005e