Minor functional fixes for redeferral. #1818
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eligible for deferred parsing (e.g., not arrow functions, not functions-in-block). This is experimental behavior, off by default. Define an 'on' mode in which all eligible functions are redeferred on GC, as well as a 'stress' mode in which all candidates are redeferred on each stack probe. This change is built on a previous PR that refactors the FunctionBody hierarchy to make it easier to toggle between deferred and fully-compiled states.
… has been inlined in a non-deferred function cannot itself be deferred. This means that we need two passes over the set of active FunctionBody's to determine the set of legal candidates. The first pass closes over the set of candidates: the functional and heuristic rules are applied, and for each function that will not be redeferred, we (recursively) mark all its inlinees as non-candidates. The second pass redefers all the functions that have not be marked as non-candidates.
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Subsumed by #1585. |
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Debugging modes, etc.