In particular, when JSPROP_GETTER is present but JSPROP_SETTER is not, and the setter argument is null, we should not use the class setter. This is part of shifting all DefineProperty APIs toward standard semantics, so blocks bug 1125624.
Assignee: nobody → jorendorff
Status: NEW → ASSIGNED
Attachment #8579966 - Flags: review?(jwalden+bmo) → review+
Backed out that whole push in https://hg.mozilla.org/integration/mozilla-inbound/rev/c3638d994edd for massive widespread bustage, https://treeherder.mozilla.org/#/jobs?repo=mozilla-inbound&revision=7613fc978d36&filter-resultStatus=testfailed&filter-resultStatus=busted&filter-resultStatus=exception - something must have changed out from under you.
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