[utility] add R2.useTraceUpdate and T2.unequalWithLog to make debugging easier

3 jobs for 758-dev-fix-for-duplicated-ngrams-table-load in 29 minutes and 43 seconds (queued for 4 minutes and 12 seconds)
latest
Status Job ID Name Coverage
  Check Lint
passed #19596
check-lint

00:08:45

 
  Compile
passed #19597
compile

00:11:31

 
  Test
passed #19598
test

00:09:26