Add missing information in ANR message from BroadcastQueueModernImpl

This keeps the broadcast ANR message consistent with the old broadcast
queue, and fixes trace analysis pipelines that consume messages in
this format. This unstructured format is brittle but should keeps things
working, pending a longer term fix to with structured (proto) format.
This CL also adds tests for TimeoutRecord to validate ANR timeout
records.

Test: m
Bug: 254452238
Change-Id: Ifd0fb8d4a1d0add3e762b8327defb3f25d5aa0c2