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operand types are not normalized in MIR shims #45940
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cc @Nashenas88
I don't think this belongs in the milestone. This isn't really a problem, it's just causing us to run some extra normalizations -- or normalizations at an unexpected time.
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on Nov 26, 2017
In normal MIR, the types of local variables and things are fully normalized. However, in the MIR shims we construct, this is not always the case. We encountered this when fixing #45889, where it is necessary to normalize the types of operands in some cases to make the existing MIR typeck.
I'm not sure if this is a bug per se. Certainly once we move to lazy norm it will be fine. =) But it was surprising. For now we are normalizing (in the case of ADT constructors) during typeck.
cc @arielb1