tree 0a68f5e30400183417fbbc1965c2b3864c520bb6
parent 956bd7d11eec1e86446a3c41ce70f0d5c4febaa3
author David Pursehouse <dpursehouse@collab.net> 1558772384 +0900
committer David Pursehouse <dpursehouse@collab.net> 1558772698 +0900

Enable more error-prone checks

Align all checks with the settings in the Gerrit project, with the
exception of:

 - ImmutableEnumChecker
 - ReferenceEquality

which remain as WARN. These will be fixed (or suppressed) in follow-up
changes.

Change-Id: I05e96e10928cbfe2796f68357cbb4abc53374ee6