text: //// [unusedTypeParameterInMethod4.ts]
  class A {
      public f1<X>() {
  
      }
  }
  
  //// [unusedTypeParameterInMethod4.js]
  var A = /** @class */ (function () {
      function A() {
      }
      A.prototype.f1 = function () {
      };
      return A;
  }());
  