c038e3b3c1
This - converts PercentileCalculator to sort entries, as previously suggested, - adds the number of values to the dump of a PercentileCalculator, and - fixes the name of a class to conform to conventions. Change-Id: Icb25a3adfc922b6d5b394883853eeeff968e4b89 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245460 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>