==== tests/cases/compiler/overloadOnConstantsInvalidOverload1.ts (3 errors) ====
    class Base { foo() { } }
    class Derived1 extends Base { bar() { } }
    class Derived2 extends Base { baz() { } }
    class Derived3 extends Base { biz() { } }
    
    function foo(name: "SPAN"): Derived1;
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! Specialized overload signature is not assignable to any non-specialized signature.
    function foo(name: "DIV"): Derived2 {
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        return null;
    ~~~~~~~~~~~~~~~~
    }
    ~
!!! A signature with an implementation cannot use a string literal type.
    
    foo("HI");
        ~~~~
!!! Argument of type 'string' is not assignable to parameter of type '"SPAN"'.