Revert of [inspector] removed ArrayLengthHelperFunction specialization for empty array (patchset #2 id:20001 of https://codereview.chromium.org/2340623002/ )

Reason for revert:
needed to revert https://codereview.chromium.org/2339173004/

Original issue's description:
> [inspector] removed ArrayLengthHelperFunction specialization for empty array
>
> There is no zero length array usage in inspector codebase. We can safely remove template specialization.
>
> BUG=chromium:635948
> R=dgozman@chromium.org,alph@chromium.org
>
> Committed: https://crrev.com/b249ffc1915d8c35ff66eae3d51d3878d588dfbf
> Cr-Commit-Position: refs/heads/master@{#39428}

TBR=jochen@chromium.org,alph@chromium.org,dgozman@chromium.org,kozyatinskiy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:635948

Review-Url: https://codereview.chromium.org/2334163006
Cr-Commit-Position: refs/heads/master@{#39431}