Add optional List<int> param to Hash.digest for easier one-liner

[sethladd]

Suggesting adding an optional List<int> param to Hash.digest() for the more simple one-liner cases.

Instead of:

var digest = sha256.update("message".charCodes()).digest();

It would be nicer to have:

var digest = sha256.digest("message".charCodes());

Thanks!

[kevmoo]

Removed Library-Crypto label.
Added Pkg-Crypto label.

[kevmoo]

You mention 'digest' and 'update' on sha256.

I think you're referring to an old version of the API>

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Added AssumedStale label.

[kevmoo]

Removed Area-Library label.
Added Area-Pkg label.

[DartBot]

This issue has been moved to dart-lang/core#178.