a1dd732ec6
For resolution this is the KClosedWorld and for codegen this is the new CodegenWorld object. This change removes the use of the world builders after the world building has ended. It prepares for computing more of the result data from the collected member usages. Change-Id: I80032e3fc0e29179137b8c0380f09f68ab6fa03b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100540 Commit-Queue: Johnni Winther <johnniwinther@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>