Try to fix Windows CI by installing happy first.
We're having the build fail with
```
windows\ghc-8.6.5\mingw\bin\strip.exe: unable to rename 'C:\sr\snapshots\c886f694\bin\happy.exe'; reason: File exists
```
commit10b5abb9a0804af968ef6e77b69a1dbc2d714133
authorJohn MacFarlane <jgm@berkeley.edu>
dateSun 4 Oct 2020, 08:33 (6 years ago)
parent01a6b07
.github/workflows/ci.yml+1
@@ -132,6 +132,7 @@ jobs:
132132 - name: Install dependencies
133133 run: |
134134 stack update
135+ stack install happy
135136 stack test --dependencies-only --fast
136137 - name: Build and test
137138 shell: cmd