fix corner case in `collapse_vars` (#4048)
authorAlex Lam S.L <alexlamsl@gmail.com>
Sun, 9 Aug 2020 21:48:56 +0000 (22:48 +0100)
committerGitHub <noreply@github.com>
Sun, 9 Aug 2020 21:48:56 +0000 (05:48 +0800)
commit49670d216bf7eca9218c797d509e149cd8515708
treeba5e747b7918454d13248eeaa5650dd9212c9395
parente2237d8cd26e27a284c6a564762345e84a365dae
fix corner case in `collapse_vars` (#4048)

fixes #4047
lib/compress.js
test/compress/collapse_vars.js