Get rid of GetLazyValue and clients.

Get rid of GetLazyValue and clients.
This breaks fetching name of the constructor property of "Object"-labeled values in the heap-snapshot-generator until that's handlified and can be moved over to the LookupIterator.
BUG=
R=jkummerow@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=23226

[Toon Verwaest, 2014-08-19 15:12:48]

PTAL

[aandrey, 2014-08-19 15:49:43]

GetLazyValue() is also used in Function::GetDisplayName() in api.cc

+cc yurys on heap-snapshot-generator.cc

[Toon Verwaest, 2014-08-19 15:53:27]

api.cc was already updated in https://codereview.chromium.org/481043002

[Jakob Kummerow, 2014-08-19 16:50:06]

LGTM if Yury is fine with the heap-snapshot-generator change.

[Toon Verwaest, 2014-08-20 10:37:34]

Committed patchset #1 manually as 23226 (presubmit successful).

[yurys, 2014-08-20 10:56:32]

lgtm