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许杰友 Jieyou Xu (Joe)
aae4730c78
Dont ICE when computing coverage of synthetic async closure body I'm not totally certain if this is *right*, but at least it doesn't ICE. The issue is that we end up generating two MIR bodies for each async closure, since the `FnOnce` and `Fn`/`FnMut` implementations have different borrowing behavior of their captured variables. They should ideally both contribute to the coverage, since those MIR bodies are (*to the user*) the same code and should have no behavioral differences. This PR at least suppresses the ICEs, and then I guess worst case we can fix this the right way later. r? Zalathar or re-roll Fixes #131190