/a.js(2,3): error TS6205: All type parameters are unused.
/a.js(8,14): error TS2339: Property 'p' does not exist on type 'C1<T, V>'.
/a.js(13,3): error TS6205: All type parameters are unused.
/a.js(20,3): error TS6205: All type parameters are unused.
/a.js(25,14): error TS2339: Property 'p' does not exist on type 'C3<T, V, X>'.


==== /a.js (5 errors) ====
    /**
     * @template T
      ~~~~~~~~~~~~
     * @template V
    ~~~~~~~~~~~~~~
     */
    ~~
!!! error TS6205: All type parameters are unused.
    class C1 {
        constructor() {
            /** @type {T} */
            this.p;
                 ~
!!! error TS2339: Property 'p' does not exist on type 'C1<T, V>'.
        }
    }
    
    /**
     * @template T,V
      ~~~~~~~~~~~~~~
     */
    ~~
!!! error TS6205: All type parameters are unused.
    class C2 {
        constructor() { }
    }
    
    /**
     * @template T,V,X
      ~~~~~~~~~~~~~~~~
     */
    ~~
!!! error TS6205: All type parameters are unused.
    class C3 {
        constructor() {
            /** @type {T} */
            this.p;
                 ~
!!! error TS2339: Property 'p' does not exist on type 'C3<T, V, X>'.
        }
    }