[commit: testsuite] master: Test Trac #7205 (2c83286)

Repository : ssh://darcs.haskell.org//srv/darcs/testsuite

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/2c832860a1a32889e7cf53f00d28fb230813f674

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

commit 2c832860a1a32889e7cf53f00d28fb230813f674
Author: Simon Peyton Jones <[email protected]>
Date:   Tue Oct 2 16:29:31 2012 +0100

    Test Trac #7205

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

 tests/gadt/T7205.hs |   15 +++++++++++++++
 tests/gadt/all.T    |    3 ++-
 2 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/tests/gadt/T7205.hs b/tests/gadt/T7205.hs
new file mode 100644
index 0000000..e8c5559
--- /dev/null
+++ b/tests/gadt/T7205.hs
@@ -0,0 +1,15 @@
+{-# LANGUAGE GADTs, MultiParamTypeClasses, FlexibleInstances, FlexibleContexts #-}
+module T7205 where
+
+data Abs env g v where
+  Abs :: g (a, env) h v -> Abs env (g (a, env) h v) (a -> v)
+
+class Eval g env h v where
+  eval :: env -> g env h v -> v
+
+evalAbs :: Eval g2 (a2, env) h2 v2 
+   	=> env 
+   	-> Abs env (g2 (a2, env) h2 v2) (a2->v2) 
+   	-> (a2->v2)
+evalAbs env (Abs e) x 
+  = eval (x, env) e    -- e :: g (a,env) h v
diff --git a/tests/gadt/all.T b/tests/gadt/all.T
index 2d1f00f..ac56021 100644
--- a/tests/gadt/all.T
+++ b/tests/gadt/all.T
@@ -112,4 +112,5 @@ test('T5424',
      multimod_compile,
      ['T5424', '-v0 -O0'])
 
-test('FloatEq', normal, compile, [''])
\ No newline at end of file
+test('FloatEq', normal, compile, [''])
+test('T7205', normal, compile, [''])