tests/cases/compiler/unusedTypeParameters4.ts(3,13): error TS6133: 'U' is declared but never used.


==== tests/cases/compiler/unusedTypeParameters4.ts (1 errors) ====
    
    var x: {
        new <T, U>(a: T): void;
                ~
!!! error TS6133: 'U' is declared but never used.
    }