- When selecting an implicit trait impl for an unboxed closure, plumb
through and use the substitutions from impl selection instead of
using those from the current param environment in trans, which may
be incorrect.
- When generating a function declaration for an unboxed closure, plumb
through the substitutions from the param environment of the closure
as above. Also normalize the type to avoid generating duplicate
declarations due to regions being inconsistently replaced with
ReStatic elsewhere.
- Do not place the closure type in the self param space when
translating the unboxed closure callee, etc. It is not actually
used, and doing so conflicts with the self substitution from
default trait methods.
Closes#18661Closes#18685
Change to resolve and update compiler and libs for uses.
[breaking-change]
Enum variants are now in both the value and type namespaces. This means that
if you have a variant with the same name as a type in scope in a module, you
will get a name clash and thus an error. The solution is to either rename the
type or the variant.
