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Commit 3e71874b authored by Jakob Brünker's avatar Jakob Brünker Committed by Marge Bot
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Tc: Allow Typeable in quantified constraints 

Previously, when using Typeable in a quantified constraint, GHC would
complain that user-specified instances of Typeable aren't allowed. This
was because checking for SigmaCtxt was missing from a check for whether
an instance head is a hand-written binding.

Fixes #20033
parent b1792fef
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