This CL is part of a  series that implements Turbofan support for
property accesses satisfying the following conditions:
1. The holder is a dictionary mode object.
2. The holder is a prototype.
3. The access is a load.

This feature will only be enabled if the build flag
v8_dict_property_const_tracking is set.

This particular CL implements support for the case that the property
in question is an accesor, meaning that the given PropertyAccessInfo
has kind kAccessorDictionaryProtoConstant.

Bug: v8:11248
Change-Id: Id082107edd45fa91a3f1d96aa9df345a60f46917
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2720300Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Frank Emrich <emrich@google.com>
Cr-Commit-Position: refs/heads/master@{#73607}