R1:fa5bcf5d9478

Provide some more detailed information about inline comments in "transaction.search"

Summary:
Ref T5873. This provides paths and line numbers for inline comments.

This is a touch hacky but I was able to keep it mostly under control.

Test Plan:
- Made inline comments.
- Called API, got path/line information.

{F5120157}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T5873

Differential Revision: https://secure.phabricator.com/D18469