==== tests/cases/compiler/classUpdateTests.ts (16 errors) ====
    //
    // test codegen for instance properties
    //
    class A {
    	public p1 = 0;
    	private p2 = 0;
    	p3;
    }
    
    class B {
    	public p1 = 0;
    	private p2 = 0;
    	p3;
    
    	constructor() {}
    }
    
    class C {
    	constructor(public p1=0, private p2=0, p3=0) {}
    }
    
    //
    // test requirements for super calls
    //
    class D { // NO ERROR
    	
    }
    
    class E extends D { // NO ERROR
    	public p1 = 0;
    }
    
    class F extends E {
    	constructor() {} // ERROR - super call required
    	~~~~~~~~~~~~~~~~
!!! Constructors for derived classes must contain a 'super' call.
    }
    
    class G extends D {
    	public p1 = 0;
    	constructor() { super(); } // NO ERROR
    }
    
    class H {
    	constructor() { super(); } // ERROR - no super call allowed
    	                ~~~~~
!!! 'super' can only be referenced in a derived class.
    }
    
    class I extends Object {
                    ~~~~~~
!!! A class may only extend another class.
    	constructor() { super(); } // ERROR - no super call allowed
    	                ~~~~~
!!! 'super' can only be referenced in a derived class.
    }
    
    class J extends G {
    	constructor(public p1:number) {
    		super(); // NO ERROR
    	}
    }
    
    class K extends G {
    	constructor(public p1:number) { // ERROR
    	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    		var i = 0;
    ~~~~~~~~~~~~
    		super();
    ~~~~~~~~~~
    	}
    ~~
!!! A 'super' call must be the first statement in the constructor when a class contains initialized properties or has parameter properties.
    }
    
    class L extends G {
          ~
!!! Class 'L' incorrectly extends base class 'G':
!!!   Private property 'p1' cannot be reimplemented.
    	constructor(private p1:number) {
    		super(); // NO ERROR
    	}
    }
    
    class M extends G {
          ~
!!! Class 'M' incorrectly extends base class 'G':
!!!   Private property 'p1' cannot be reimplemented.
    	constructor(private p1:number) { // ERROR
    	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    		var i = 0;
    ~~~~~~~~~~~~
    		super();
    ~~~~~~~~~~
    	}
    ~~
!!! A 'super' call must be the first statement in the constructor when a class contains initialized properties or has parameter properties.
    }
    
    //
    // test this reference in field initializers
    //
    class N {
    	public p1 = 0;
    	public p2 = this.p1;
    
    	constructor() {
    		this.p2 = 0;
    	}
    }
    
    //
    // test error on property declarations within class constructors
    //
    class O {
    	constructor() {
    		public p1 = 0; // ERROR
    		~~~~~~
!!! Statement expected.
    	}
    }
    ~
!!! Declaration or statement expected.
    
    class P {
    	constructor() {
    		private p1 = 0; // ERROR
    		~~~~~~~
!!! Statement expected.
    	}
    }
    ~
!!! Declaration or statement expected.
    
    class Q {
    	constructor() {
    		public this.p1 = 0; // ERROR
    		~~~~~~
!!! Statement expected.
    		            ~~
!!! Property 'p1' does not exist on type 'Q'.
    	}
    }
    
    class R {
    	constructor() {
    		private this.p1 = 0; // ERROR
    		~~~~~~~
!!! Statement expected.
    		             ~~
!!! Property 'p1' does not exist on type 'R'.
    	}
    }