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Safe Transmute: Fix propagation of errors

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- Make sure that the most specific Reason is the one that bubbles up when we
  are folding over the `Answer` tree. `Reason::DstIsBitIncompatible` is the
  least specific, so that should be used only when there isn't anything else
  available.
- Small fixes where we used the wrong Reason variant.
- Tiny cleanups
This commit is contained in:
Bryan Garza 2023-04-27 17:19:16 -07:00
parent 263a4f2cb6
commit 94ad084ac6
12 changed files with 67 additions and 52 deletions
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2
compiler/rustc_transmute/src/lib.rs
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@ -1,4 +1,4 @@
#![feature(alloc_layout_extra, decl_macro, iterator_try_reduce, never_type)]
#![feature(alloc_layout_extra, decl_macro, iterator_try_reduce, never_type, let_chains)]
#![allow(dead_code, unused_variables)]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]