81dc21699e
Fix ICE in `improper_ctypes_definitions` lint with all-ZST transparent types
Fixes #87496. There is also another function in the same file that looks fishy, but I haven't been able to produce an ICE there, and in any case, it's not related to #87496:
fd853c00e2/compiler/rustc_lint/src/types.rs (L720-L734)
r? ```@JohnTitor```