[webkit-changes] [WebKit/WebKit] 800ee9: [JSC] atob(); crashes on Asan builds

[EWS]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 800ee9a9188a6199ecc1efdc620d6b95bd9b0f8b
      https://github.com/WebKit/WebKit/commit/800ee9a9188a6199ecc1efdc620d6b95bd9b0f8b
  Author: Yijia Huang <yijia_huang at apple.com>
  Date:   2023-01-11 (Wed, 11 Jan 2023)

  Changed paths:
    M JSTests/stress/atob-btoa.js
    M Source/JavaScriptCore/jsc.cpp

  Log Message:
  -----------
  [JSC] atob(); crashes on Asan builds
https://bugs.webkit.org/show_bug.cgi?id=250457
rdar://104124523

Reviewed by Saam Barati.

atob and btoa should throw exceptions when executed with no input.
Web API Spec: https://html.spec.whatwg.org/multipage/webappapis.html#dom-atob-dev

* JSTests/stress/atob-btoa.js:
(shouldThrow):
* Source/JavaScriptCore/jsc.cpp:
(JSC_DEFINE_HOST_FUNCTION):

Canonical link: https://commits.webkit.org/258815@main