Fix Array::New(length) in the API to return an array with the provided length.

Fix Array::New(length) in the API to return an array with the provided length.

The internal factory method initializes the elements but does not set
the length property of the array.

Add array api test case for length.


R=antonm@chromium.org
BUG=v8:1256
TEST=cctest/test-api/Array

Committed: http://code.google.com/p/v8/source/detail?r=7210

[antonm, 2011-03-16 19:51:04]

LGTM.

Maybe rename Factory::NewJSArray argument to capacity instead of length in this
change as well, but up to you

[Mads Ager (chromium), 2011-03-16 19:54:20]

Thanks Anton. Argument name changed. :-)