[commit: ghc] ghc-8.6: Bump array submodule (bf256ef)

[git at git.haskell.org]

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

On branch  : ghc-8.6
Link       : http://ghc.haskell.org/trac/ghc/changeset/bf256ef23e86b6bac16595d10e3bd9cf4b548b19/ghc

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

commit bf256ef23e86b6bac16595d10e3bd9cf4b548b19
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Fri Oct 5 17:43:59 2018 -0400

    Bump array submodule


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

bf256ef23e86b6bac16595d10e3bd9cf4b548b19
 libraries/array | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/array b/libraries/array
index 82a29b1..8af2f62 160000
--- a/libraries/array
+++ b/libraries/array
@@ -1 +1 @@
-Subproject commit 82a29b198a67f54de2f72d96ca077800afbfbe4f
+Subproject commit 8af2f620077c4bb67ec06ea0a0afede266e84b4d