fix corner case in evaluate (#3739)

fixes #3738

lib/compress.js

@@ -2528,9 +2528,8 @@ merge(Compressor.prototype, {
                 return left.is_negative_zero() || right.is_negative_zero();
               case "*":
               case "/":
-                return true;
               case "%":
-                return left.is_negative_zero();
+                return true;
               default:
                 return false;
             }