[commit: ghc] master: Add another testcase for #12082 (93acc02)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/93acc02f7db7eb86967b4ec586359f408d62f75d/ghc

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

commit 93acc02f7db7eb86967b4ec586359f408d62f75d
Author: Ben Gamari <bgamari.foss at gmail.com>
Date:   Wed Jul 20 17:25:37 2016 +0200

    Add another testcase for #12082
    
    Test Plan: Validate, should pass.
    
    Reviewers: austin
    
    Subscribers: thomie
    
    Differential Revision: https://phabricator.haskell.org/D2399
    
    GHC Trac Issues: #12082


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

93acc02f7db7eb86967b4ec586359f408d62f75d
 testsuite/tests/driver/all.T                       | 3 +--
 testsuite/tests/typecheck/should_compile/T12082.hs | 9 +++++++++
 testsuite/tests/typecheck/should_compile/all.T     | 1 +
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/testsuite/tests/driver/all.T b/testsuite/tests/driver/all.T
index ee59bef..ebd1b5a 100644
--- a/testsuite/tests/driver/all.T
+++ b/testsuite/tests/driver/all.T
@@ -491,5 +491,4 @@ test('T12135',
      run_command,
      ['$MAKE -s --no-print-directory T12135'])
 
-test('T12192', normal, run_command,
-     ['mkdir foo && (cd foo && {compiler} -v0 ../T12192)'])
+test('T12192', normal, run_command, ['mkdir foo && (cd foo && {compiler} -v0 ../T12192)']) 
\ No newline at end of file
diff --git a/testsuite/tests/typecheck/should_compile/T12082.hs b/testsuite/tests/typecheck/should_compile/T12082.hs
new file mode 100644
index 0000000..7aa4196
--- /dev/null
+++ b/testsuite/tests/typecheck/should_compile/T12082.hs
@@ -0,0 +1,9 @@
+{-# LANGUAGE RankNTypes #-}
+
+module T12082 where
+
+import Data.Typeable (Typeable)
+import Control.Monad.ST (RealWorld)
+
+f :: forall a. (forall b. Typeable b => b -> a) -> a
+f = undefined :: (RealWorld -> a) -> a
diff --git a/testsuite/tests/typecheck/should_compile/all.T b/testsuite/tests/typecheck/should_compile/all.T
index 995fa2a..f107ba1 100644
--- a/testsuite/tests/typecheck/should_compile/all.T
+++ b/testsuite/tests/typecheck/should_compile/all.T
@@ -532,3 +532,4 @@ test('T12067', extra_clean(['T12067a.hi', 'T12067a.o']),
 test('T12185', normal, compile, [''])
 test('T12133', normal, compile, [''])
 test('T12381', normal, compile, [''])
+test('T12082', normal, compile, [''])