Fix benchmark build with stack-bench.yaml

Author: bergmark

benchmarks/Compare/BufferBuilder.hs

@@ -7,10 +7,11 @@
 module Compare.BufferBuilder () where
 
 import Prelude ()
-import Prelude.Compat
+import Prelude.Compat hiding ((<>))
 
 import Data.BufferBuilder.Json
 import Data.Int (Int64)
+import Data.Monoid ((<>))
 import Twitter
 import qualified Data.BufferBuilder.Utf8 as UB
 

examples/Twitter/Manual.hs

@@ -16,6 +16,7 @@ import Prelude ()
 import Prelude.Compat
 
 import Control.Applicative
+import Data.Semigroup ((<>))
 import Twitter
 
 import Data.Aeson hiding (Result)

stack-bench.yaml

@@ -1,4 +1,4 @@
-resolver: nightly-2017-12-23
+resolver: nightly-2018-03-12
 # We use aeson in the snapshot to
 # - avoid recompilation of criterion
 # - compare against it
@@ -10,5 +10,4 @@ work-dir: .stack-work-bench
 packages:
 - benchmarks
 extra-deps:
-- aeson-1.2.3.0
-- text-1.2.3.0
+- aeson-1.3.1.0