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defer-type-errors and equality constraints

Consider

{-# OPTIONS_GHC -fdefer-type-errors #-}
x = const True ('a' + 'a')
y = const True (not 'a')

Currently x is True, but y is undefined. I think it would make sense for both to be True.

Trac metadata
Trac field Value
Version 8.4.3
Type Bug
TypeOfFailure OtherFailure
Priority low
Resolution Unresolved
Component Compiler (Type checker)
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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