Suggest that expressions that look like const generic arguments should be enclosed in brackets#77502
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bors merged 1 commit intorust-lang:masterfrom Oct 27, 2020
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I pulled out the changes for const expressions from #71592 (without the trait object diagnostic changes) and made some small changes; the implementation is @estebank's.
We're also going to want to make some changes separately to account for trait objects (they result in poor diagnostics, as is evident from one of the test cases here), such as an adaption of #72273.
Fixes #70753.
r? @petrochenkov