Use latest Stackage snapshot (#226)

* Use latest Stackage snapshot

* Fix doctest for GHC-8.8

* Fix doctest in a consistent way

.travis.yml

@@ -23,7 +23,7 @@ matrix:
   - ghc: 8.8.1
 
   # stack
-  - ghc: 8.6.5
+  - ghc: 8.8.1
     env: STACK_YAML="$TRAVIS_BUILD_DIR/stack.yaml"
 
 install:

src/Relude/DeepSeq.hs

@@ -32,12 +32,12 @@ import qualified Control.Exception.Base (evaluate)
 
 {- | Lifted alias for 'Control.Exception.Base.evaluate' with clearer name.
 
->>> list = [2, 1, 3] :: [Int]
+>>> let list = [1..5] :: [Int]
 >>> :sprint list
 list = _
 >>> () <$ evaluateWHNF list
 >>> :sprint list
-list = _ : _
+list = 1 : _
 -}
 evaluateWHNF :: MonadIO m => a -> m a
 evaluateWHNF = liftIO . Control.Exception.Base.evaluate
@@ -46,13 +46,12 @@ evaluateWHNF = liftIO . Control.Exception.Base.evaluate
 
 {- | Like 'evaluateWHNF' but discards value.
 
->>> list = [2, 1, 3] :: [Int]
+>>> let list = [1..5] :: [Int]
 >>> :sprint list
 list = _
 >>> evaluateWHNF_ list
 >>> :sprint list
-list = _ : _
-
+list = 1 : _
 -}
 evaluateWHNF_ :: MonadIO m => a -> m ()
 evaluateWHNF_ what = (`seq` ()) <$!> evaluateWHNF what
@@ -61,13 +60,12 @@ evaluateWHNF_ what = (`seq` ()) <$!> evaluateWHNF what
 
 {- | Alias for @evaluateWHNF . force@ with clearer name.
 
->>> list = [2, 1, 3] :: [Int]
+>>> let list = [1..5] :: [Int]
 >>> :sprint list
 list = _
 >>> () <$ evaluateNF list
 >>> :sprint list
-list = [2,1,3]
-
+list = [1,2,3,4,5]
 -}
 evaluateNF :: (NFData a, MonadIO m) => a -> m a
 evaluateNF = evaluateWHNF . force
@@ -77,13 +75,12 @@ evaluateNF = evaluateWHNF . force
 {- | Alias for @evaluateWHNF . rnf@. Similar to 'evaluateNF'
 -- but discards resulting value.
 
->>> list = [2, 1, 3] :: [Int]
+>>> let list = [1..5] :: [Int]
 >>> :sprint list
 list = _
 >>> evaluateNF_ list
 >>> :sprint list
-list = [2,1,3]
-
+list = [1,2,3,4,5]
 -}
 evaluateNF_ :: (NFData a, MonadIO m) => a -> m ()
 evaluateNF_ = evaluateWHNF . rnf

stack.yaml

@@ -1,4 +1,4 @@
-resolver: lts-14.6
+resolver: nightly-2019-10-31
 
 nix:
   packages: [binutils, gmp]