Remove HandleCell and use GlobalHandle and HandleScope::Escape instead.

Remove HandleCell and use GlobalHandle and HandleScope::Escape instead.

Added HandleScope::Escape to HandleScope to allow exiting a value
from a scope.

Committed: http://code.google.com/p/v8/source/detail?r=6993

[Mads Ager (chromium), 2011-03-01 13:43:22]

LGTM

http://codereview.chromium.org/6594075/diff/1/src/handles.h
File src/handles.h (right):

http://codereview.chromium.org/6594075/diff/1/src/handles.h#newcode144
src/handles.h:144: Handle<T> Escape(Handle<T> handle_value) {
I find the name Escape a little bit misleading since it also closes the scope.
Can we call it something like CloseAndEscape(handle)?

[Lasse Reichstein, 2011-03-01 14:02:32]

http://codereview.chromium.org/6594075/diff/1/src/handles.h
File src/handles.h (right):

http://codereview.chromium.org/6594075/diff/1/src/handles.h#newcode144
src/handles.h:144: Handle<T> Escape(Handle<T> handle_value) {
Done.