==== tests/cases/compiler/objectLiteralFunctionArgContextualTyping.ts (4 errors) ====
    interface I {
        value: string;
        toString: (t: string) => string;
    }
    
    function f2(args: I) { }
    
    f2({ hello: 1 }) // error 
       ~~~~~~~~~~~~
!!! Argument of type '{ hello: number; }' is not assignable to parameter of type 'I'.
!!!   Property 'value' is missing in type '{ hello: number; }'.
    f2({ value: '' }) // missing toString satisfied by Object's member
    f2({ value: '', what: 1 }) // missing toString satisfied by Object's member
    f2({ toString: (s) => s }) // error, missing property value from ArgsString
       ~~~~~~~~~~~~~~~~~~~~~~
!!! Argument of type '{ toString: (s: string) => string; }' is not assignable to parameter of type 'I'.
!!!   Property 'value' is missing in type '{ toString: (s: string) => string; }'.
    f2({ toString: (s: string) => s }) // error, missing property value from ArgsString
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! Argument of type '{ toString: (s: string) => string; }' is not assignable to parameter of type 'I'.
!!!   Property 'value' is missing in type '{ toString: (s: string) => string; }'.
    f2({ value: '', toString: (s) => s.uhhh }) // error
                                       ~~~~
!!! Property 'uhhh' does not exist on type 'string'.