Refactor code generation for global declarations.

Refactor code generation for global declarations.

(Baseline is http://codereview.chromium.org/9704054/)

R=fschneider@chromium.org
BUG=
TEST=

Committed: https://code.google.com/p/v8/source/detail?r=11332

[fschneider, 2012-04-11 14:05:34]

LGTM.

You could consider lazily creating the FixedArray that holds the declared
globals instead of first creating a ZoneList and then copying it. This way the
code maybe even shorter.

[rossberg, 2012-04-16 11:54:58]

On 2012/04/11 14:05:34, fschneider wrote:
> LGTM.
> 
> You could consider lazily creating the FixedArray that holds the declared
> globals instead of first creating a ZoneList and then copying it. This way the
> code maybe even shorter.

The problem with that is that I don't know the length of the FixedArray ahead of
time.