fix corner case in `reduce_vars` & `unused` (#4414)
authorAlex Lam S.L <alexlamsl@gmail.com>
Sat, 19 Dec 2020 04:47:46 +0000 (12:47 +0800)
committerGitHub <noreply@github.com>
Sat, 19 Dec 2020 04:47:46 +0000 (12:47 +0800)
commit9a5aede94147bf5769054fd933b1c15690915d25
tree4901f7aea01c91dc94a43ee6e04c7324901a5528
parente6dd471f8fff84c878153008139150a090c5ba19
fix corner case in `reduce_vars` & `unused` (#4414)

fixes #4413
lib/scope.js
test/compress/drop-unused.js