Includes changelist from issue 151004 because 151004 was on a machine
that cannot commit. http://codereview.chromium.org/151004
http://codereview.chromium.org/147205/diff/1/2
File src/x64/builtins-x64.cc (right):
http://codereview.chromium.org/147205/diff/1/2#newcode185
Line 185: // +1 ~ return
LGTM
http://codereview.chromium.org/147205/diff/1/2
File src/x64/builtins-x64.cc (right):
http://codereview.chromium.org/147205/diff/1/2#newcode185
Line 185: // +1 ~ return address.
Not understood. The +1 is added because of the return address?
Make a constant and refer to the stack structure.
