"Unable to process binding" error message should not contain the wrappnig function

[mariusGundersen]

If you have an error in your binding, like referring to a non-existing value, then the error message produced does not match what was enterd in the binding. For example, the binding data-bind="text: notDefinedInViewModel" will produce the error:

Uncaught ReferenceError: Unable to process binding "text: function(){ return notDefinedInViewModel }"
Message: notDefinedInViewModel is not defined

This is slightly confusing, since the function wrapping the value of the binding was added by Knockout, not by the developer. It would therefore be great if the binding value was unwrapped, so it produced an error like this:

Uncaught ReferenceError: Unable to process binding "text: notDefinedInViewModel"
Message: notDefinedInViewModel is not defined "

[brianmhunt]

Related: #1628

[brianmhunt]

Closing this (re. comment in #1633), but as noted there - if there's anything outstanding, we can re-open. Cheers.

[9560026742ravi]

Uncaught ReferenceError: email is not defined
Uncaught ReferenceError: Unable to process binding "submit: function (){return firstTimeLoginData }"
Message: firstTimeLoginData is not defined

[9560026742ravi]

email is the id of parent html page and same id is coming to child html .