Function JSStringCopyCFString

pub unsafe extern "C" fn JSStringCopyCFString(
    alloc: CFAllocatorRef,
    string: JSStringRef,
) -> CFStringRef

@function @abstract Creates a CFString from a JavaScript string. @param alloc The alloc parameter to pass to CFStringCreate. @param string The JSString to copy into the new CFString. @result A CFString containing string. Ownership follows the Create Rule.