==== tests/cases/compiler/declInput.ts (1 errors) ====
    interface bar {
    
    }
    
    class bar {
          ~~~
!!! Duplicate identifier 'bar'.
      public f() { return ''; }
      public g() { return {a: <bar>null, b: undefined, c: void 4 }; }
      public h(x = 4, y = null, z = '') { x++; }
    }