parserErrorRecovery_ParameterList4.ts(1,12): error TS7006: Parameter 'a' implicitly has an 'any' type.
parserErrorRecovery_ParameterList4.ts(1,14): error TS1127: Invalid character.


==== parserErrorRecovery_ParameterList4.ts (2 errors) ====
    function f(a,¬) {
               ~
!!! error TS7006: Parameter 'a' implicitly has an 'any' type.
                 ~
!!! error TS1127: Invalid character.
    }