Large files not being returned for indexed filepath searches

Created by: keegancsmith

In this specific context a 23mb ttf file is not being returned with the search file:"arial" count:1000, but is returned when index:no is appended. The root cause is likely zoekt-archive-index excluding it from what is passed into the zoekt indexing code, rather than letting the zoekt index code exclude it.

Slack context: https://sourcegraph.slack.com/archives/CHEKCRWKV/p1588286811016700