f67cba1067
This extends existing support for multiroot compilation from frontend server to kernel service. Bug: dartbug.com/33508 Change-Id: I76e49038765793b4d683869ab812dde5e6baf6c4 Reviewed-on: https://dart-review.googlesource.com/61982 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Siva Annamalai <asiva@google.com>