Comments removed in JSX expression

[shulhi]

When comments are outside of braces, it gets removed in certain cases.

https://rescript-lang.org/try?version=v11.1.4&module=esmodule&code=DYUwLgBAHhC8EB4AmBLAbgPgFAQgejwgGMB7AWzJADswcIBvO3USAQzggCIALEYYEpywBIAEohWRMADoAzmABOKKgHMAFKwCUuXHQC+WBHlSYgA