==== tests/cases/compiler/classSideInheritance1.ts (2 errors) ====
    class A {
      static bar(): string {
         return "";
        }
        foo(): number { return 1; }
    }
     
    class C2 extends A {}
    
    var a: A;
    var c: C2;
    a.bar(); // static off an instance - should be an error
      ~~~
!!! Property 'bar' does not exist on type 'A'.
    c.bar(); // static off an instance - should be an error
      ~~~
!!! Property 'bar' does not exist on type 'C2'.
    A.bar(); // valid
    C2.bar(); // valid