tests/cases/compiler/functionOverloads27.ts(4,13): error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'.


==== tests/cases/compiler/functionOverloads27.ts (1 errors) ====
    function foo():string;
    function foo(bar:string):number;
    function foo(bar?:any):any{ return '' }
    var x = foo(5);
                ~
!!! error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'.