#14703: T14507 testcase fragile due to unique exposed in error message -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Test Suite | Version: 8.4.1-alpha1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- I noticed this failure in the CircleCI output: {{{#!patch --- ./patsyn/should_fail/T14507.run/T14507.stderr.normalised 2018-01-22 18:57:32.381575253 +0000 +++ ./patsyn/should_fail/T14507.run/T14507.comp.stderr.normalised 2018-01-22 18:57:32.381575253 +0000 @@ -2,7 +2,7 @@ T14507.hs:18:9: Iceland Jack! Iceland Jack! Stop torturing me! Pattern-bound variable x :: TypeRep a - has a type that mentions pattern-bound coercion: co_a2CF + has a type that mentions pattern-bound coercion: co_a2D4 Hint: use -fprint-explicit-coercions to see the coercions Probable fix: add a pattern signature In the declaration for pattern synonym ‘SO’ }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14703 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler