You need to add the target to gn_isolate_map.pyl.

Sample CL:
https://chromium.googlesource.com/chromium/src/+/b99217a1536c70cf1c1c2b357e3e850db9516e63

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a02e5db6a496574c516985350f2f6366771ff741

commit a02e5db6a496574c516985350f2f6366771ff741
Author: baxley <baxley@chromium.org>
Date: Thu Mar 30 21:44:47 2017

Remove reading list EG suite from try bots.

This is causing it to fail the anayze step.

BUG= 706922 

Review-Url: https://codereview.chromium.org/2786203003
Cr-Commit-Position: refs/heads/master@{#460893}

[modify] https://crrev.com/a02e5db6a496574c516985350f2f6366771ff741/ios/build/bots/chromium.mac/ios-simulator-eg.json

Thanks for confirming. I started this morning and got some presubmit errors for updating the pyl and not updating a json file.

I removed the reading list configuration for now, since it was blocking the try jobs for any EG tests.

I'll send a CL out for this later today, or early tomorrow.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/491ee98f77779b5efe9618aaa4b01f23e2326d49

commit 491ee98f77779b5efe9618aaa4b01f23e2326d49
Author: baxley <baxley@chromium.org>
Date: Fri Mar 31 15:17:49 2017

Add ios_chrome_reading_list_egtests as a try job.

Add ios_chrome_reading_list_egtests to gn_isolate_map.pyl and
ios-simulator-eg.json.

BUG= 706922 

Review-Url: https://codereview.chromium.org/2790683003
Cr-Commit-Position: refs/heads/master@{#461125}

[modify] https://crrev.com/491ee98f77779b5efe9618aaa4b01f23e2326d49/ios/build/bots/chromium.mac/ios-simulator-eg.json
[modify] https://crrev.com/491ee98f77779b5efe9618aaa4b01f23e2326d49/testing/buildbot/gn_isolate_map.pyl
[modify] https://crrev.com/491ee98f77779b5efe9618aaa4b01f23e2326d49/testing/buildbot/manage.py