text: //// [objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.ts]
  // object types are identical structurally
  
  class A {
      foo<T>(x: T): T { return null; }
  }
  
  class B<U, V> {
      foo(x: U): U { return null; }
  }
  
  class C<V, W, X> {
      foo(x: V): V { return null; }
  }
  
  interface I<X, Y, Z, A> {
      foo(x: X): X;
  }
  
  interface I2 {
      foo<Y, Z, A, B>(x: Y): Y;
  }
  
  var a: { foo<Z, A, B, C, D>(x: Z): Z }
  var b = { foo<A, B, C, D, E, F>(x: A) { return x; } };
  
  function foo1(x: A);
  function foo1(x: A); // error
  function foo1(x: any) { }
  
  function foo1b(x: B<string, string>);
  function foo1b(x: B<string, string>); // error
  function foo1b(x: any) { }
  
  function foo1c(x: C<string, number, boolean>);
  function foo1c(x: C<string, number, boolean>); // error
  function foo1c(x: any) { }
  
  function foo2(x: I<string, boolean, number, string>);
  function foo2(x: I<string, boolean, number, string>); // error
  function foo2(x: any) { }
  
  function foo3(x: typeof a);
  function foo3(x: typeof a); // error
  function foo3(x: any) { }
  
  function foo4(x: typeof b);
  function foo4(x: typeof b); // error
  function foo4(x: any) { }
  
  function foo5(x: A);
  function foo5(x: B<string, string>); // ok
  function foo5(x: any) { }
  
  function foo5b(x: A);
  function foo5b(x: C<string, number, boolean>); // ok
  function foo5b(x: any) { }
  
  function foo6(x: A);
  function foo6(x: I<string, number, boolean, Date>); // ok
  function foo6(x: any) { }
  
  function foo7(x: A);
  function foo7(x: typeof a); // no error, bug?
  function foo7(x: any) { }
  
  function foo8(x: B<string, string>);
  function foo8(x: I<string, string, boolean, Date>); // error
  function foo8(x: any) { }
  
  function foo9(x: B<string, number>);
  function foo9(x: C<string, number, B<string, string>>); // error
  function foo9(x: any) { }
  
  function foo10(x: B<string, boolean>);
  function foo10(x: typeof a); // ok
  function foo10(x: any) { }
  
  function foo11(x: B<string, boolean>);
  function foo11(x: typeof b); // ok
  function foo11(x: any) { }
  
  function foo12(x: I<B<string, number>, number, Date, string>);
  function foo12(x: C<B<string, number>, number, Date>); // error
  function foo12(x: any) { }
  
  function foo12b(x: I2);
  function foo12b(x: C<string, string, boolean>); // ok
  function foo12b(x: any) { }
  
  function foo13(x: I<string, Date, RegExp, Date>);
  function foo13(x: typeof a); // ok
  function foo13(x: any) { }
  
  function foo14(x: I<string, Date, RegExp, boolean>);
  function foo14(x: typeof b); // ok
  function foo14(x: any) { }
  
  function foo15(x: I2);
  function foo15(x: C<number, B<string, string>, B<number, string>>); // ok
  function foo15(x: any) { }
  
  //// [objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js]
  // object types are identical structurally
  var A = (function () {
      function A() {
      }
      A.prototype.foo = function (x) { return null; };
      return A;
  })();
  var B = (function () {
      function B() {
      }
      B.prototype.foo = function (x) { return null; };
      return B;
  })();
  var C = (function () {
      function C() {
      }
      C.prototype.foo = function (x) { return null; };
      return C;
  })();
  var a;
  var b = { foo: function (x) { return x; } };
  function foo1(x) { }
  function foo1b(x) { }
  function foo1c(x) { }
  function foo2(x) { }
  function foo3(x) { }
  function foo4(x) { }
  function foo5(x) { }
  function foo5b(x) { }
  function foo6(x) { }
  function foo7(x) { }
  function foo8(x) { }
  function foo9(x) { }
  function foo10(x) { }
  function foo11(x) { }
  function foo12(x) { }
  function foo12b(x) { }
  function foo13(x) { }
  function foo14(x) { }
  function foo15(x) { }
  