Jonas Jenwald 3cfa316d40 Convert src/core/operator_list.js to use standard classes
With modern JavaScript modules, where only *explicitly* exported properties are visible to the outside, the `QueueOptimizerClosure` should no longer be necessary.

Furthermore, to reduce the possibility of `NullOptimizer` and `QueueOptimizer` getting out of sync (note e.g. the inconsistency fixed in PR 10784), we now let the latter extend the former one.
2021-05-16 13:39:54 +02:00
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2012-10-29 14:08:52 -04:00