Test on LTS 15.3 and 15.5

.travis.yml

@@ -9,6 +9,7 @@ env:
   - STACK_YAML=stack-lts-13.11.yaml UPDATE_NIGHTLY=NO
   - STACK_YAML=stack-lts-13.19.yaml UPDATE_NIGHTLY=NO
   - STACK_YAML=stack-lts-14.yaml    UPDATE_NIGHTLY=NO
+  - STACK_YAML=stack-lts-15.3.yaml  UPDATE_NIGHTLY=NO
   - STACK_YAML=stack.yaml           UPDATE_NIGHTLY=NO
   - STACK_YAML=stack-nightly.yaml   UPDATE_NIGHTLY=YES
 

stack-15.3.yaml

@@ -0,0 +1,9 @@
+resolver: lts-15.3
+packages:
+- '.'
+extra-deps: []
+flags:
+  hlibsass:
+    sharedlibsass: false
+    externallibsass: false
+extra-package-dbs: []

stack-15.3.yaml.lock

@@ -0,0 +1,12 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    size: 491373
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/15/3.yaml
+    sha256: 29e9ff61b8bf4b4fcff55cde3ac106ebb971f0d21331dccac9eee63374fa6ca8
+  original: lts-15.3

stack.yaml

@@ -1,4 +1,4 @@
-resolver: lts-15.0
+resolver: lts-15.5
 packages:
 - '.'
 extra-deps: []

stack.yaml.lock

@@ -6,7 +6,7 @@
 packages: []
 snapshots:
 - completed:
-    size: 488576
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/15/0.yaml
-    sha256: e4b6a87b47ec1cf63a7f1a0884a3b276fce2b0d174a10e8753c4f618e7983568
-  original: lts-15.0
+    size: 491372
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/15/5.yaml
+    sha256: 1b549cfff328040c382a70a84a2087aac8dab6d778bf92f32a93a771a1980dfc
+  original: lts-15.5