A64: Synchronize with r15358.

A64: Synchronize with r15358.

This brings experimental/a64 up to r15358, 2013-06-27.

Known regressions:
  - cctest/test-api/CallICFastApi_SimpleSignature_Miss1WithProfiler
  - cctest/test-api/CallICFastApi_SimpleSignature_Miss2WithProfiler
  - cctest/test-api/FastReturnValuesWithProfiler
  - cctest/test-api/FunctionTemplateWithProfiler
  - cctest/test-api/InterceptorCallICFastApi_SimpleSignature_Miss2WithProfiler
  - cctest/test-api/InterceptorCallICFastApi_TrivialSignatureWithProfiler
  - cctest/test-api/LoadICFastApi_DirectCall_GCMoveStubWithProfiler
  - cctest/test-cpu-profiler/BoundFunctionCall
  - mjsunit/harmony/generators-iteration
  - mjsunit/regress/regress-166379
  - mjsunit/regress/regress-2681

Conflicts:
	src/a64/lithium-a64.h

BUG=none
R=baptiste.afsa@arm.com

Committed: https://code.google.com/p/v8/source/detail?r=18826

[baptiste.afsa1, 2014-01-24 13:55:46]

lgtm

[jbramley, 2014-01-24 14:12:25]

Committed patchset #1 manually as r18826 (presubmit successful).

[ulan, 2014-01-24 14:30:40]

Could you please add new regressions to the shared spreadsheet? So that we could
synchronize investigation. Otherwise, I am not sure which ones are being looked
at and which ones are still available. =)