Store both major and minor key on code stubs.

Store both major and minor key on code stubs.

R=jkummerow@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=22505

[Jakob Kummerow, 2014-07-21 12:23:19]

LGTM. Nice unification!

https://codereview.chromium.org/409613002/diff/1/src/heap-snapshot-generator.cc
File src/heap-snapshot-generator.cc (right):

https://codereview.chromium.org/409613002/diff/1/src/heap-snapshot-generator....
src/heap-snapshot-generator.cc:1502: "(%s code)", CodeStub::MajorName(
nit: consider pulling out a temp variable or two to make indentation a bit less
ugly. (But we can also leave it as is if it doesn't bother you; clang-format is
always right.)

https://codereview.chromium.org/409613002/diff/1/src/objects.h
File src/objects.h (right):

https://codereview.chromium.org/409613002/diff/1/src/objects.h#newcode5892
src/objects.h:5892: static const int kSafepointTableOffsetBitCount = 24;
nit: let's add a comment that bits 25-31 (zero-indexed) are currently unused
(just to make it obvious that this is intentional).

[Yang, 2014-07-21 13:10:26]

Committed patchset #1 manually as r22505 (presubmit successful).