text: var A;
  (function (A) {
      (function (M) {
          var C = (function () {
              function C() {
              }
              return C;
          })();
      })(A.M || (A.M = {}));
      var M = A.M;
  })(A || (A = {}));
  var B;
  (function (B) {
      (function (M) {
          var D = (function () {
              function D() {
              }
              return D;
          })();
          M.D = D;
      })(B.M || (B.M = {}));
      var M = B.M;
  })(B || (B = {}));
  
  var a;
  var b;
  
  a = b;
  b = a; // error
  