fix corner case in `side_effects` (#4622)

fixes #4621

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/compress.js b/lib/compress.js
index 7a6a0bcb..afb555f0 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -8295,7 +8295,7 @@ merge(Compressor.prototype, {
                 if (has_arg_refs(argname)) return false;
             }
             return true;
-        });
+        }) && !(fn.rest instanceof AST_Destructured && has_arg_refs(fn.rest));
         var can_inline = can_drop && compressor.option("inline") && !self.is_expr_pure(compressor);
         if (can_inline && stat instanceof AST_Return) {
             var value = stat.value;