**Description:**
@swc-bot works, but as it works by creating a commit after merging each PR, it makes reading commit log harder and it causes problems with caching in CI.
Changeset itself does not support managing Rust crates, but there's a crate for this purpose.
**Description:**
This would improve compile time by a margin, and this is a refactoring that should be done before applying `swc_allocator::boxed::Box` to ES AST.
This PR removes `swc_visit_macros` because we now use a simple binary to generate code before publishing.
**Related issue:**
- Closes https://github.com/swc-project/swc/issues/9101
**Description:**
This PR is to prepare removal of `string-cache`. Actually, this PR does not remove it. Instead, this PR only removes direct usages of `js_word!`s, especially in patterns.
**Related issue:**
- #4946.
