### What problem does this feature solve? In some cases, variable names are renamed even though it's not necessary to do so. - [x] an example with CJS modules ([REPL](https://repl.rolldown.rs/#eNp1jsEKwjAMhl+l5DKFMdHjwDfppW6ZKF0ibTcGo+9uSjv14G79+yXfnxUGaFd4UI9L8/TpTdB+cw1diuOLXVCzsROe1eB4VFVzGphlpNL0iy8ffDMuY00dk2eLjeX7IUvqMn3UJB0IbXATxhqyczujpHxEkgTVm2DUVa1RO00j95NocUn9Xr4TTQBElfs3VUn/VTsi0YhnlgVrAvoA8Q2cJWUL)): `data` does not have to be renamed to `data$1` - [ ] an example with functions ([REPL](https://repl.rolldown.rs/#eNpdjs0KgzAQhF9l2UsVxNIehb5JLqluiiVuSkxEEN+9+dFavO3sDDPfggqbBXvuaK7fY7wZm0NX2EY5fIx1MEnt6QbKmgEu9VUZEyIXwf/2/Wc/pc224NbwaDTV2ryKXFJt6VJw2CBsnPW0Vpg7d4xNZQia00pHSnrtoFCeW9cbhqKERVjBAHEnJKST8IBlPZ77eLTK/LbkvOUUjo+1LJKBASKT7xCbyhDnBT5RpbpQElqmENfS0ehw/QLq63g0)): `data` in IIFE does not have to be renamed to `data$1` ### What does the proposed API look like? Not an API change.