568255dbec
Constructors int.fromEnvironment and String.fromEnvironment will now yield 0 or '' rather than null in the case where the requested environment declaration does not exist, so various expectations needed to be updated accordingly. Change-Id: Ie6f3b9ee18a970e50520ac84c2741b4875ada3c9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139804 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Erik Ernst <eernst@google.com>