Reland "Pass a Code object to Assembler::(set_)target_address_at for use by ool constant pool."

Reland "Pass a Code object to Assembler::(set_)target_address_at for use by ool constant pool."

The ool constant pool will require a pointer to the code's constant pool when
updating or reading target addresses using set_target_address_at()
and target_address_at().

Original Review URL: https://codereview.chromium.org/183803022

R=ulan@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=19856

[rmcilroy, 2014-03-11 22:50:58]

Original CL in patch set 1, fixes in set 2.  PTAL.

[ulan, 2014-03-12 10:27:11]

lgtm

[rmcilroy, 2014-03-12 15:24:10]

Committed patchset #2 manually as r19856 (presubmit successful).