fix corner cases in `merge_vars` (#4108)
authorAlex Lam S.L <alexlamsl@gmail.com>
Tue, 15 Sep 2020 20:43:01 +0000 (21:43 +0100)
committerGitHub <noreply@github.com>
Tue, 15 Sep 2020 20:43:01 +0000 (04:43 +0800)
commitad27c1420226032459157444cf7ac17bf95bd5e6
treec09914c296bd2cbbc3e0bbe5e2fd663b01e2738f
parenta62b086184e70072929a218d97dd11ce8efdfaff
fix corner cases in `merge_vars` (#4108)

fixes #4107
fixes #4109
fixes #4110
fixes #4111
lib/compress.js
test/compress/merge_vars.js