From f9763a53465232a1b0ec4668cbf9ef36dc812922 Mon Sep 17 00:00:00 2001
From: Simon Peyton Jones <simonpj@microsoft.com>
Date: Wed, 15 May 2013 10:19:21 +0100
Subject: [PATCH] Test Trac #7910

---
 testsuite/tests/th/T7910.hs     | 16 ++++++++++++++++
 testsuite/tests/th/T7910.stdout |  1 +
 testsuite/tests/th/all.T        |  3 ++-
 3 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 testsuite/tests/th/T7910.hs
 create mode 100644 testsuite/tests/th/T7910.stdout

diff --git a/testsuite/tests/th/T7910.hs b/testsuite/tests/th/T7910.hs
new file mode 100644
index 0000000000..d04436512d
--- /dev/null
+++ b/testsuite/tests/th/T7910.hs
@@ -0,0 +1,16 @@
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE TemplateHaskell #-}
+module Main where
+
+import Language.Haskell.TH
+import Language.Haskell.TH.Syntax
+
+class C a
+instance C Int
+
+type D a = C a
+
+main = print $(
+  do isCInst <- isInstance ''C [ConT ''Int]
+     isDInst <- isInstance ''D [ConT ''Int]
+     lift (isCInst,isDInst))
diff --git a/testsuite/tests/th/T7910.stdout b/testsuite/tests/th/T7910.stdout
new file mode 100644
index 0000000000..1fa0b54b36
--- /dev/null
+++ b/testsuite/tests/th/T7910.stdout
@@ -0,0 +1 @@
+(True,True)
diff --git a/testsuite/tests/th/all.T b/testsuite/tests/th/all.T
index 5ff833e890..ad1c4e9782 100644
--- a/testsuite/tests/th/all.T
+++ b/testsuite/tests/th/all.T
@@ -273,4 +273,5 @@ test('T7532',
      ['T7532', '-v0 ' + config.ghc_th_way_flags])
 test('T2222', normal, compile, ['-v0'])
 test('T1849', normal, ghci_script, ['T1849.script'])
-test('T7681', normal, compile, ['-v0'])
\ No newline at end of file
+test('T7681', normal, compile, ['-v0'])
+test('T7910', normal, compile_and_run, ['-v0'])
-- 
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