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Author SHA1 Message Date
David Wood
607eb322a8 trait_sel: skip elaboration of sizedness supertrait 
As a performance optimization, skip elaborating the supertraits of
`Sized`, and if a `MetaSized` obligation is being checked, then look for
a `Sized` predicate in the parameter environment. This makes the
`ParamEnv` smaller which should improve compiler performance as it avoids
all the iteration over the larger `ParamEnv`.
 2025-06-16 23:04:36 +00:00
David Wood
118d4e62c3 middle: print {Meta,Pointee}Sized in opaques 
When `sized_hierarchy` is enabled, rustc should print `MetaSized` or
`PointeeSized` instead of `?Sized` in opaques.
 2025-06-16 23:04:34 +00:00