We handle all >, >= comparisons as a commuted < or <= respectively. This is incorrect with respect to evaluation order of calls to ToPrimitive conversions.
Created attachment 99664 [details] The code changes, will need updated layout test results.
Created attachment 99667 [details] The patch with updated Layout test results
The attached patch checks in a failing result for one sputnik test; the test is incorrect, more details in the ChangeLog. (For other sputnik tests we have expected failures checked in; at some point we should remove the sputnik & ietestcenter suites & replace with a copy of test-262, license permitting).
Fixed in r90401
Either this, or https://bugs.webkit.org/show_bug.cgi?id=63947 appears to have broken all JSC builds other than Snow Leopard. At least Leopard, Win and Qt are crashing all tests.