Do for unions of many empty-object-spreadables what we did for unions of 2 #42233
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andrewbranch
approved these changes
Jan 6, 2021
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@typescript-bot test this |
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Heya @weswigham, I've started to run the extended test suite on this PR at 35277d9. You can monitor the build here. |
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Heya @weswigham, I've started to run the parallelized community code test suite on this PR at 35277d9. You can monitor the build here. |
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Heya @weswigham, I've started to run the parallelized Definitely Typed test suite on this PR at 35277d9. You can monitor the build here. |
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The user suite test run you requested has finished and failed. I've opened a PR with the baseline diff from master. |
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Tests all look good, so I'll merge~ |
Zzzen
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to Zzzen/TypeScript
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Jan 16, 2021
… of 2 (microsoft#42233) * Do for unions of many empty-object-spreadables what we did for unions of 2 * Accept baseline
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Fixes #41386 by broadening our simplification of a spread of
undefined | Ato be the same asPartial<A>to also recognize things likeundefined | false | Aas the same asPartial<A>. Doing this made it obvious that we also needed to fix #41418, thanks to the introduction of more of those spread-synthetic optional properties. So this also contains the fix for that, making this PR require #41921 get merged for it to be reasonable (I have left one failing test which should pass once #41921 is merged).