Move Arrays class to private library.

Move Arrays class to private library.

Committed: https://code.google.com/p/dart/source/detail?r=19375
Reverted: http://code.google.com/p/dart/source/detail?r=19420

Committed: https://code.google.com/p/dart/source/detail?r=19476

[Lasse Reichstein Nielsen, 2013-03-04 08:30:26]

lgtm

[floitsch, 2013-03-04 10:31:17]

Committed patchset #2 manually as r19375 (presubmit successful).

[floitsch, 2013-03-04 21:31:24]

Adding srdjan as reviewer.

[Jennifer Messerly, 2013-03-04 21:40:57]

Hey!  Glad to see Arrays moving away :)

One question, how do I access the functionality that was previously in
Arrays.copy and Arrays.rangeCheck?

Also, will there be an insertRangeList and removeRangeList in
IterableMixinWorkarounds?

[floitsch, 2013-03-04 21:50:16]

On 2013/03/04 21:40:57, John Messerly wrote:
> Hey!  Glad to see Arrays moving away :)
> 
> One question, how do I access the functionality that was previously in
> Arrays.copy and Arrays.rangeCheck?
No plans yet.
> 
> Also, will there be an insertRangeList and removeRangeList in
> IterableMixinWorkarounds?
Maybe. We will see, if we can't wait for the real Mixins to arrive. If you need
them earlier, please file a bug and cc me and we can try to add it earlier.

[srdjan, 2013-03-04 21:51:49]

lgtm

https://codereview.chromium.org/12386072/diff/7001/sdk/lib/collection/collect...
File sdk/lib/collection/collections.dart (right):

https://codereview.chromium.org/12386072/diff/7001/sdk/lib/collection/collect...
sdk/lib/collection/collections.dart:378: if (startFrom is! int) throw new
ArgumentError(startFrom);
Please remove explicit type checks. Mark corresponding co19 tests as invalid.

[floitsch, 2013-03-05 13:24:38]

https://codereview.chromium.org/12386072/diff/7001/sdk/lib/collection/collect...
File sdk/lib/collection/collections.dart (right):

https://codereview.chromium.org/12386072/diff/7001/sdk/lib/collection/collect...
sdk/lib/collection/collections.dart:378: if (startFrom is! int) throw new
ArgumentError(startFrom);
On 2013/03/04 21:51:49, srdjan wrote:
> Please remove explicit type checks. Mark corresponding co19 tests as invalid.

Done.

[floitsch, 2013-03-05 13:25:36]

Committed patchset #4 manually as r19476 (presubmit successful).