[commit: ghc] master: Test #10432 (f141f41)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/f141f416714acf9a88e89bcde49fe79d59395d00/ghc

>---------------------------------------------------------------

commit f141f416714acf9a88e89bcde49fe79d59395d00
Author: Jan Stolarek <jan.stolarek at p.lodz.pl>
Date:   Wed Dec 23 09:35:36 2015 +0100

    Test #10432
    
    Summary: A regression test for #10432, which seems to already be fixed.
    
    Test Plan: ./validate
    
    Reviewers: simonpj, austin, bgamari
    
    Subscribers: thomie
    
    Differential Revision: https://phabricator.haskell.org/D1691
    
    GHC Trac Issues: #10432


>---------------------------------------------------------------

f141f416714acf9a88e89bcde49fe79d59395d00
 testsuite/tests/typecheck/should_compile/T10432.hs | 17 +++++++++++++++++
 testsuite/tests/typecheck/should_compile/all.T     |  1 +
 2 files changed, 18 insertions(+)

diff --git a/testsuite/tests/typecheck/should_compile/T10432.hs b/testsuite/tests/typecheck/should_compile/T10432.hs
new file mode 100644
index 0000000..7a9821e
--- /dev/null
+++ b/testsuite/tests/typecheck/should_compile/T10432.hs
@@ -0,0 +1,17 @@
+{-# LANGUAGE ExistentialQuantification, PolyKinds,
+             DataKinds, RankNTypes, GADTs, TypeOperators #-}
+module T10432 where
+
+import Data.Type.Equality
+
+data WrappedType = forall a. WrapType a;
+
+matchReflK :: forall (a :: ka) (b :: kb) (r :: *).
+  ('WrapType a :~: 'WrapType b) -> (('WrapType a ~ 'WrapType b) => r) -> r;
+  matchReflK Refl r = r;
+
+matchReflK2 :: forall (a :: ka) (b :: kb) (r :: *).
+               ('WrapType a :~: 'WrapType b) ->  r
+matchReflK2 x = let foo :: ('WrapType a ~ 'WrapType b) => r
+                    foo = undefined
+                in undefined
diff --git a/testsuite/tests/typecheck/should_compile/all.T b/testsuite/tests/typecheck/should_compile/all.T
index ae2aa94..a969a4c 100644
--- a/testsuite/tests/typecheck/should_compile/all.T
+++ b/testsuite/tests/typecheck/should_compile/all.T
@@ -461,6 +461,7 @@ test('T10009', normal, compile, [''])
 test('T10390', normal, compile, [''])
 test('T8555', normal, compile, [''])
 test('T8799', normal, compile, [''])
+test('T10432', normal, compile, [''])
 test('T10423', normal, compile, [''])
 test('T10489', unless(compiler_debugged(), skip), compile, [''])
 test('T10348', normal, compile, [''])