[webkit-changes] [WebKit/WebKit] aa30fa: [JSC] String#toWellFormed should return stringifie...

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: aa30fafbe181103163e4268fe7d1a2ea4a356f26
      https://github.com/WebKit/WebKit/commit/aa30fafbe181103163e4268fe7d1a2ea4a356f26
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2023-02-08 (Wed, 08 Feb 2023)

  Changed paths:
    A JSTests/stress/string-to-well-formed-number.js
    M Source/JavaScriptCore/runtime/StringPrototype.cpp

  Log Message:
  -----------
  [JSC] String#toWellFormed should return stringified value
https://bugs.webkit.org/show_bug.cgi?id=251757
rdar://problem/105104668

Reviewed by Justin Michaud and Mark Lam.

We should return stringified value instead of original thisValue for the fast path.

* JSTests/stress/string-to-well-formed-number.js: Added.
(shouldBe):
* Source/JavaScriptCore/runtime/StringPrototype.cpp:
(JSC::JSC_DEFINE_HOST_FUNCTION):

Canonical link: https://commits.webkit.org/260043@main