Always canonicalize skolemized regions#49598
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Since `ReSkolemized` has the flag `KEEP_IN_LOCAL_TCX`, and canonicalization is meant to ensure that flag is no longer present, it implicitly is depending on the existence of the leak check. However, since we want to remove that in rust-lang#48407, we can no longer make that assumption. This is related to rust-lang#48696, but does not resolve it. This does unblock that PR, however. It could have been tacked on there, but I wanted to make sure this is a reasonable short term approach separately from that.
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As @sgrif and I discussed on gitter, this PR isn't actually taking the approach I expected, which was to remove the |
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@nikomatsakis @sgrif What's the status of this PR? |
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Since
ReSkolemizedhas the flagKEEP_IN_LOCAL_TCX, andcanonicalization is meant to ensure that flag is no longer present, it
implicitly is depending on the existence of the leak check. However,
since we want to remove that in #48407, we can no longer make that
assumption.
This is related to #48696, but does not resolve it. This does unblock that
PR, however. It could have been tacked on there, but I wanted to make
sure this is a reasonable short term approach separately from that.
r? @nikomatsakis