Merge pull request #326 from pcapriotti/topic/ghc-8.6.3

Run test suite for 8.6.

Author: HuwCampbell

.travis.yml

@@ -29,6 +29,6 @@ script:
  - export VERSION=$(cabal info . | awk 'NR==1 { n=split($2,x,"-"); print x[n]; }')
  - cabal install --only-dependencies --enable-tests
  - |
-   if [ $GHCVER = "head" ] || [ ${GHCVER%.*} = "8.4" ] || [ ${GHCVER%.*} = "8.2" ] || [ ${GHCVER%.*} = "8.0" ] || [ ${GHCVER%.*} = "7.10" ] || [ ${GHCVER%.*} = "7.8" ] || [ ${GHCVER%.*} = "7.6" ] || [ ${GHCVER%.*} = "7.4" ] ; then
+   if [ $GHCVER = "head" ] || [ ${GHCVER%.*} = "8.6" ] || [ ${GHCVER%.*} = "8.4" ] || [ ${GHCVER%.*} = "8.2" ] || [ ${GHCVER%.*} = "8.0" ] || [ ${GHCVER%.*} = "7.10" ] || [ ${GHCVER%.*} = "7.8" ] || [ ${GHCVER%.*} = "7.6" ] || [ ${GHCVER%.*} = "7.4" ] ; then
       cabal test
    fi