Packages: Don't use expectJust

Authored by bgamari on Tue, Nov 19, 5:01 PM.

Description

Packages: Don't use expectJust

Throw a slightly more informative error on failure. Motivated by the
errors seen in !2160.

Details

Committed
Marge Bot <ben+marge-bot@smart-cactus.org>Sat, Nov 23, 5:57 PM
Parents
rGHC0e6c204570f7: rts: Consolidate spinlock implementation
Branches
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Marge Bot <ben+marge-bot@smart-cactus.org> committed rGHCcb11fcb52ce8: Packages: Don't use expectJust (authored by bgamari).Sat, Nov 23, 5:57 PM