[ruby/prism] Always return the character width for char_is_identifier_start() and char_is_identifier_utf8()
https://github.com/ruby/prism/commit/4cb276ac4c
[ruby/prism] Always return the character width for char_is_identifier_start() and char_is_identifier_utf8()
as those compute the character width and do extra checks.
https://github.com/ruby/prism/commit/4cb276ac4c