fix corner case with `collapse_vars` & `ie8` (#3469)
authorAlex Lam S.L <alexlamsl@gmail.com>
Mon, 14 Oct 2019 05:34:35 +0000 (13:34 +0800)
committerGitHub <noreply@github.com>
Mon, 14 Oct 2019 05:34:35 +0000 (13:34 +0800)
commita39bdb584097b376250e6d09cd9ee9453b9f43de
tree376cb17c90359d504fdc208caf1a842d50f643d6
parente8ab0a44b214527a46053c7d0600414c0c9899f3
fix corner case with `collapse_vars` & `ie8` (#3469)

fixes #3468
lib/compress.js
lib/scope.js
test/compress/ie8.js