search: directly compute and access file match limit in job creation
Created by: rvantonder
Stacked on https://github.com/sourcegraph/sourcegraph/pull/32926/files.
Directly computes fileMatchLimit
. Note this is duplicating some logic in query_converter.go
and putting it in job creation where it's better suited. When I'm done with the pass I can remove the redundancy in query_converter.go
.
Test plan
Semantics-preserving.