Bug 1328140 is adding megamorphic IC stubs. It would be good to add a JIT option to put all ICs in megamorphic mode to help testing/fuzzing.
This is an assigned P1 bug without activity in two weeks. If you intend to continue working on this bug for the current release/iteration/sprint, remove the 'stale-bug' keyword. Otherwise we'll reset the priority of the bug back to '--' on Monday, August 28th.
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