fix corner case in `collapse_vars` (#3972)
authorAlex Lam S.L <alexlamsl@gmail.com>
Mon, 8 Jun 2020 16:09:21 +0000 (17:09 +0100)
committerGitHub <noreply@github.com>
Mon, 8 Jun 2020 16:09:21 +0000 (00:09 +0800)
commit5561d3e7f3252837ac3b85401f2403937860da46
tree5e55b19e83e45ad990a6f2da3e5994d7d1dc592a
parent491d6ce1d5f8e49730de25788cabf9e213470588
fix corner case in `collapse_vars` (#3972)

fixes #3971
lib/compress.js
test/compress/collapse_vars.js