Update transformers submodule
authorHerbert Valerio Riedel <hvr@gnu.org>
Fri, 27 Nov 2015 11:12:59 +0000 (12:12 +0100)
committerHerbert Valerio Riedel <hvr@gnu.org>
Fri, 27 Nov 2015 11:12:59 +0000 (12:12 +0100)
Most notably this pulls in `MonadFail` instances
(see also #10751)

- add MonadFail instance for ContT
- re-order methods for consistency
- Add `MonadFail` instances
- Canonicalise Monad instances
- instance Bifunctor Constant

libraries/transformers

index 5ccb747..34fba39 160000 (submodule)
@@ -1 +1 @@
-Subproject commit 5ccb747e67d579e3f212fd3526469c35282e532e
+Subproject commit 34fba39b1279936a739ca8857e9592cc9a44c34e