text: //// [typeOfThisInInstanceMember.js]
  var C = (function () {
      function C(x) {
          this.x = this;
          var t = this;
          t.x;
          t.y;
          t.z;
          var r = t.foo();
      }
      C.prototype.foo = function () {
          return this;
      };
  
      Object.defineProperty(C.prototype, "y", {
          get: function () {
              return this;
          },
          enumerable: true,
          configurable: true
      });
      return C;
  })();
  
  var c;
  
  // all ok
  var r = c.x;
  var ra = c.x.x.x;
  var r2 = c.y;
  var r3 = c.foo();
  var rs = [r, r2, r3];
  
  rs.forEach(function (x) {
      x.foo;
      x.x;
      x.y;
  });
  