Changed recording of heap stats on OOM to store data directly in local

Changed recording of heap stats on OOM to store data directly in local
variables rather than in a stack-allocated struct.  The struct field
values turned out not to be available in minidumps.

[Mads Ager (chromium), 2009-12-04 09:55:56]

LGTM

Let's hope this will let us inspect it in windbg.

[Søren Thygesen Gjesse, 2009-12-04 10:08:09]

http://codereview.chromium.org/460069/diff/1/2
File src/api.cc (right):

http://codereview.chromium.org/460069/diff/1/2#newcode130
src/api.cc:130: int new_space_size;
How about using a macro for expanding these names?

http://codereview.chromium.org/460069/diff/1/5
File src/heap.h (right):

http://codereview.chromium.org/460069/diff/1/5#newcode1107
src/heap.h:1107: public:
How about adding 'int *start_marker' at the begining and 'int *end_marker' at
the end to make it easier to locate the structure in memory.

[Christian Plesner Hansen, 2009-12-04 10:15:54]

http://codereview.chromium.org/460069/diff/1/2
File src/api.cc (right):

http://codereview.chromium.org/460069/diff/1/2#newcode130
src/api.cc:130: int new_space_size;
Normally I would have done that but I don't want to do anything that might
confuse windbg.  It appears to be easily confused...

http://codereview.chromium.org/460069/diff/1/5
File src/heap.h (right):

http://codereview.chromium.org/460069/diff/1/5#newcode1107
src/heap.h:1107: public:
Done