/a.js(1,14): error TS1139: Type parameter declaration expected.
/a.js(1,17): error TS1003: Identifier expected.
/a.js(1,17): error TS1110: Type expected.
/a.js(1,17): error TS8024: JSDoc '@param' tag has name '', but there is no parameter with that name.
/a.js(1,18): error TS1005: '>' expected.
/a.js(1,18): error TS1005: '}' expected.


==== /a.js (6 errors) ====
    /** @param {<} x */
                 ~
!!! error TS1139: Type parameter declaration expected.
                    
!!! error TS1003: Identifier expected.
                    
!!! error TS1110: Type expected.
                    
!!! error TS8024: JSDoc '@param' tag has name '', but there is no parameter with that name.
                     
!!! error TS1005: '>' expected.
                     
!!! error TS1005: '}' expected.
    function f(x) {}
    