[ic] Also support caching accessor calls with primitive receivers. CallFunction does the proper wrapping.

BUG=v8:5561

Change-Id: Icb4172628e1975f8eaa8252a20b27ff36d8c63c4
Reviewed-on: https://chromium-review.googlesource.com/457038
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43938}