The implementation in Parser doesn't descend into sub-thread.
Re-use the getThreadSummary method in ThreadItem and traverse
the thread properly.
Bug: T298617
Change-Id: I318d9012eb83f37ccbe463923524ef2e9f995ced
This changes a vast number of test expected-outputs because it affects
the order of the keys when serialized.
Bug: T315400
Change-Id: I6ad2cded6ba7cb2cc5e5ba37ea60f4b18ecc26be
Move the code that generates these wrapper nodes and attributes
from postprocessReplyTool() (only called when reply tool is enabled)
to addDiscussionToolsInternal (always called).
This undoes some changes from 31c57d594a and 980b2c38bc.
Bug: T314707
Change-Id: I07ed210375d494047670015410430c087d67f21a