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4debe08707
1. use negative regex (instead of ".") to check iframeError 2. make Test262Error.prototype.toString() always include the string Test262Error (no spaces) so it matches /Test262Error/ 3. modify check for supportsWindowOnerror - require that first argument (message) to onerror() contains the error name by checking for /Error:/. Change (3) above forces IE11 onto the !supportsWindowOnerror path. Test262 tests are run inside an eval() on IE11, and errors are caught and explicitly have toString() called. Without this, IE11 passes only the `message` property to onerror(), and regexes that expect to match error name fail. sth: revert to simple `onerror` checking gs: refactor function `$DONE` refactor logic tree add support for async test failures ed.js: crude support for error typing S8.7.1_A2: cache result of delete `delete` has a side-effect and its return value depends on this; cache result of delete so when reporting result, we are always reporting the result that made us fail, not the result of a new delete [pedantic] ed: explicitly pass cooked error to $DONE gs: only let $DONE be called once
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