Do not materialize uninitialized const for debug evaluate.

Do not materialize uninitialized const for debug evaluate.

R=prybin@chromium.org
BUG=

Committed: https://code.google.com/p/v8/source/detail?r=16148

[Yang, 2013-08-12 11:22:46]

Please take a look. I ended up opting for the easy fix since the better one is
more complicated than I expected and requires me to fix some existing issues in
the debugger first. I added a TODO for this in the test case.

[Peter.Rybin, 2013-08-12 11:43:25]

LGTM with comment

You check for the hole in both locals and params, but for params there is no
counterpart check. That's a bit odd, looks as if you don't take the possibility
of the hole in params seriously. Or I miss some logic.

[Yang, 2013-08-12 13:34:36]

On 2013/08/12 11:43:25, Peter.Rybin wrote:
> LGTM with comment
> 
> You check for the hole in both locals and params, but for params there is no
> counterpart check. That's a bit odd, looks as if you don't take the
possibility
> of the hole in params seriously. Or I miss some logic.

I changed those hole-conditions for params to asserts, and it's symmetrical now.

[Yang, 2013-08-12 13:35:52]

Committed patchset #2 manually as r16148.