fix corner case in loops (#4565)

fixes #4564
2021-01-17 22:36:59 +00:00
parent 884ec4e8a5
commit e23a10f7f9
3 changed files with 32 additions and 2 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -6169,7 +6169,7 @@ merge(Compressor.prototype, {
                var def = sym.definition();
                if (def.scope !== self) {
                    var d = find_variable(sym.name);
-                    if ((d && d.redefined() || d) === def) return;
+                    if (d === def || d && d.redefined() === def) return;
                }
                node.object.walk(tw);
                return true;