CallICStub with a "never patch" approach until customization.

CallICStub with a "never patch" approach by default. Patching will
occur only when custom feedback needs to be gathered (future CLs).

Now rebased on https://codereview.chromium.org/254623002/, which moves the type feedback vector to the SharedFunctionInfo.

R=verwaest@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=21093

[mvstanton, 2014-04-25 12:37:33]

Hi Toon,
Here is the revised CallICStub. It's rebased on a CL that needs to last first,
moving the type vector to the SharedFunctionInfo. It

a) never patches
b) goes to the runtime on monomorphic miss
c) doesn't go to the runtime on megamorphic miss (unless --trace_ic is on)
d) Retrieves the vector from the frame, rather than passed in as a register.
This last change avoids performance degrades.

Sunspider string-base64 still has an issue, looking at that. So no hurry on this
CL yet, with another to land first, thx,
--Michael

[Toon Verwaest, 2014-04-29 15:20:30]

lgtm

https://codereview.chromium.org/247373002/diff/130001/src/ia32/code-stubs-ia3...
File src/ia32/code-stubs-ia32.cc (right):

https://codereview.chromium.org/247373002/diff/130001/src/ia32/code-stubs-ia3...
src/ia32/code-stubs-ia32.cc:2465: // (non_function is bound in EmitSlowCase)
Drop () around the sentence

[mvstanton, 2014-04-30 14:34:02]

Committed patchset #8 manually as r21093 (presubmit successful).