f9d64593ff
This CL implements the spec change in https://github.com/dart-lang/language/pull/3435. It changes the implementation of UP in the CFE and in the analyzer such that it matches the updated specification in language PR dart-lang/language#3435. Change-Id: I2fb56c11e671e6917baffb89f9fb231072d22a0a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/333922 Reviewed-by: Chloe Stefantsova <cstefantsova@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Erik Ernst <eernst@google.com>