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Increase selectivity of subtype relationship for signatures (#35659)

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* Increase selectivity of subtype relationship for signatures

* Add regression test

* Accept new baselines

* Use strictSubtypeRelation for union subtype reduction

* (x: number | undefined) -> void is subtype of (x?: number | undefined) => void

* Accept new baselines

* Add tests

* Accept new baselines

* Address CR feedback

* Fix parameter list length check

* Accept API baseline changes
This commit is contained in:
Anders Hejlsberg
2019-12-20 14:52:22 -08:00
committed by GitHub
parent 3d2b92ce69
commit 2f0d07c29a
18 changed files with 875 additions and 47 deletions
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src/executeCommandLine/executeCommandLine.ts
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@@ -663,6 +663,7 @@ namespace ts {
reportCountStatistic("Assignability cache size", caches.assignable);
reportCountStatistic("Identity cache size", caches.identity);
reportCountStatistic("Subtype cache size", caches.subtype);
reportCountStatistic("Strict subtype cache size", caches.strictSubtype);
performance.forEachMeasure((name, duration) => reportTimeStatistic(`${name} time`, duration));
}
else {