fix corner case in `collapse_vars` (#4071)
authorAlex Lam S.L <alexlamsl@gmail.com>
Tue, 25 Aug 2020 09:23:36 +0000 (10:23 +0100)
committerGitHub <noreply@github.com>
Tue, 25 Aug 2020 09:23:36 +0000 (17:23 +0800)
commita31c27c7cf0c1543305c7710b139201850132e15
treec77ff4a46e422c664ca7a348576190cc1e5204b0
parent1caf7c7bd2160a5f249066bf62292f3589ceebb1
fix corner case in `collapse_vars` (#4071)

fixes #4070
lib/compress.js
test/compress/collapse_vars.js