Investigate lifetime requirement on inline test_case

[luke-biel]

I'm using test_case in my prod code (outside of #[cfg(test)])

#[test_case(br#""abc""#, Ok(b"", TokenUnicodeString("abc".to_string())))]
fn parse_token_unicode_string<'a>(input: &'a [u8]) -> Result<(&'a [u8], TokenUnicodeString), Error> {

returns

error[E0261]: use of undeclared lifetime name `'a`
  --> crates/kami-schema/src/unicode_string.rs:11:64
   |
11 | fn parse_token_unicode_string<'a>(input: &'a [u8]) -> Result<(&'a [u8], TokenUnicodeString), Error> {
   |                                                                ^^ undeclared lifetime

and for

#[test_case(br#""abc""#, Ok(b"", TokenUnicodeString("abc".to_string())))]
fn parse_token_unicode_string(input: &[u8]) -> Result<(&[u8], TokenUnicodeString), Error> {

it prints out

error[E0106]: missing lifetime specifier
  --> crates/kami-schema/src/unicode_string.rs:11:56
   |
11 | fn parse_token_unicode_string(input: &[u8]) -> Result<(&[u8], TokenUnicodeString), Error> {
   |                                                        ^ expected named lifetime parameter
   |
   = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime
   |
11 | fn parse_token_unicode_string(input: &[u8]) -> Result<(&'static [u8], TokenUnicodeString), Error> {
   |                                                        ~~~~~~~~

Without test_case() attribute it compiles. I'd expect this to work after changes made in 2.0.

[luke-biel]

My bad, forgot =>. I must be tired