fix corner case in string concatenations (#3692)

- migrate de-facto compression to `conditionals` & `strings` fixes #3689
2020-01-28 07:33:11 +08:00
parent 0dcedad2d5
commit e9e76dcf04
6 changed files with 164 additions and 98 deletions
--- a/test/compress/dead-code.js
+++ b/test/compress/dead-code.js
@@ -830,6 +830,7 @@ issue_3552: {
 unreachable_assign: {
    options = {
        dead_code: true,
+        strings: true,
    }
    input: {
        console.log(A = "P" + (A = "A" + (B = "S" + (A = B = "S"))), A, B);