Avoid the accidental removal of comments inside expressions by dx fmt (#4410)

* Avoid the accidental removal of comments inside expressions by dx fmt

* Rewrite the logic to pass failed tests

* Removed unnecessary call to write_inline_comments

* add failing test case

* alter parsing a bit to handle more test cases

* almost there...

* fix

* use threadlocal

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

packages/autofmt/Cargo.toml

@@ -21,6 +21,7 @@ syn = { workspace = true, features = [
 ] }
 serde = { workspace = true, features = ["derive"] }
 prettyplease = { workspace = true }
+regex = "1.11.1"
 
 [dev-dependencies]
 pretty_assertions = { workspace = true }