Language: Add binary integer literals

[DartBot]

_This issue was originally filed by [email protected]_

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When working with bits and bytes, having binary integer literals comes handy, as a lot of languages acknowledged (Python, Ruby, Java, even GCC has them as an extension). I believe that the reasoning behind adding binary literals to Java 7, as per http://mail.openjdk.java.net/pipermail/coin-dev/2009-March/000929.html, is equally valid to Dart, and therefore I propose to add binary literals in the same form ("0b100000" as an equivalent of "0x20"). I think that implementation is no concern (I did it in the VM and it was pretty straightforward, as I describe in http://ladicek.github.com/2012/04/29/hacking-the-vm-adding-binary-integer-literals.html).

[anders-sandholm]

_Removed Type-Defect label._
_Added Type-Enhancement, Area-Language, Triaged labels._

[gbracha]

_Set owner to @gbracha._
_Added Accepted label._

[gbracha]

Probably should be treated in the context of a general radix indicator.

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_Added this to the Later milestone._

[kasperl]

_Removed this from the Later milestone._
_Added Oldschool-Milestone-Later label._

[kasperl]

_Removed Oldschool-Milestone-Later label._

[srawlins]

+1

C++14 is scheduled to have binary literals as well.

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf
http://www.informit.com/articles/article.aspx?p=2209021

[d-silveira]

any news on this 8 years on?

[munificent]

No news, sorry. We've been focused on higher-value features like extension methods and non-nullable types. I do hope that we get to smaller quality of life features like this at some point, but we've got some more foundational stuff to do first.