[commit: ghc] wip/names3: Add type signature (f174286)

[git at git.haskell.org]

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

On branch  : wip/names3
Link       : http://ghc.haskell.org/trac/ghc/changeset/f174286c402ff59ac523603caf408a6889923fe2/ghc

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

commit f174286c402ff59ac523603caf408a6889923fe2
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Thu Sep 8 14:51:30 2016 -0400

    Add type signature


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

f174286c402ff59ac523603caf408a6889923fe2
 compiler/iface/MkIface.hs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler/iface/MkIface.hs b/compiler/iface/MkIface.hs
index 0f16da8..f05426d 100644
--- a/compiler/iface/MkIface.hs
+++ b/compiler/iface/MkIface.hs
@@ -446,6 +446,7 @@ addFingerprints hsc_env mb_old_fingerprint iface0 new_decls
                   where n = occName $ ifName d
 
         -- strongly-connected groups of declarations, in dependency order
+       groups :: [SCC IfaceDeclABI]
        groups =
            stronglyConnCompFromEdgedVerticesUniq edges