==== tests/cases/compiler/ParameterList8.ts (3 errors) ====
    declare class C2 {
     constructor(public p1:string); // ERROR
                 ~~~~~~~~~~~~~~~~
!!! A parameter property is only allowed in a constructor implementation.
     constructor(private p2:number); // ERROR
                 ~~~~~~~~~~~~~~~~~
!!! A parameter property is only allowed in a constructor implementation.
     constructor(public p3:any); // ERROR
                 ~~~~~~~~~~~~~
!!! A parameter property is only allowed in a constructor implementation.
    }