Remove obsolete file
TODO-+
Add the error def
Add helper function to check for error types
Remove the exception value type
Update to new API
Add the value-of flag for the attr

This flag will be placed on attrs and functions for bindings
to know whenever such functions are useful toconvert an item
to a basic type. To do things like toString() for example.
Also add the flag on the functions
Add more debugging
Add support for the throw flag
Handle the value-of attribute
Add support for the value-of

We now can parse it and have a getter on the object