DecodeResult should preserve its history in both failure and success cases

[chrislewis]

This will require changing the current structure of DecodeResult to DecodeResult[A](history: CursorHistory, result: String \/ A).

[tylerjharden]

Is there something I can do to assist with this? Lack of preserved history led to 10 days of debugging for us as any issues during decode only ever resulted in a generic None.get exception, something like this would have reduced that down to 4 hours worth of exception checking. For posterity I'd like to help implement this if not already done to save future users from falling into this rut our team did.

[seanparsons]

@tylerjharden Please feel free to look into implementing it, I can provide assistance if necessary.

[tonymorris]

Argonaut started off that way, but all sorts of useful properties are
subsequently lost.
On 19/03/2016 8:27 AM, "Sean Parsons" notifications@github.com wrote:

@tylerjharden https://github.com/tylerjharden Please feel free to look
into implementing it, I can provide assistance if necessary.

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#134 (comment)

[adelbertc]

Finding myself wanting this a couple times now, I'm curious if anyone can shed some light on exactly which properties are lost? Failing that maybe I can try implementing it myself and seeing what walls I run into..