[commit: ghc] master: Comments only (cc07c40)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/cc07c40189d4375ca5b22beb3ad74a81fb85d9b4/ghc

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

commit cc07c40189d4375ca5b22beb3ad74a81fb85d9b4
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date:   Thu Aug 6 14:46:48 2015 +0100

    Comments only


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

cc07c40189d4375ca5b22beb3ad74a81fb85d9b4
 compiler/typecheck/TcSimplify.hs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler/typecheck/TcSimplify.hs b/compiler/typecheck/TcSimplify.hs
index 825ce21..8babe0f 100644
--- a/compiler/typecheck/TcSimplify.hs
+++ b/compiler/typecheck/TcSimplify.hs
@@ -1118,6 +1118,8 @@ warnRedundantGivens (SigSkol ctxt _)
        FunSigCtxt _ warn_redundant -> warn_redundant
        ExprSigCtxt                 -> True
        _                           -> False
+  -- To think about: do we want to report redundant givens for
+  -- pattern synonyms, PatSynCtxt? c.f Trac #9953, comment:21.
 
 warnRedundantGivens (InstSkol {}) = True
 warnRedundantGivens _             = False