a991c17dc9
The revision begins the implementation of: https://docs.google.com/document/d/1KK8b6kzr0pQev5YNftSZhN3M6I8HcvOJwJ6U-cW4nfw/edit?ts=5a05b3e9#heading=h.7j21arix8p2 * The ArgumentsDescriptor is updated to hold a bitvector for positional arguments. * The kernel flowgraph builder is updated to calculate the appropriate bits from the interface target and pass them through the ArgumentsDescriptor for regular MethodInvocations. Bug: Change-Id: I1cd9f43f697df1dd4f36103bbdfc0ba000125c02 Reviewed-on: https://dart-review.googlesource.com/21541 Commit-Queue: Samir Jindel <sjindel@google.com> Reviewed-by: Vyacheslav Egorov <vegorov@google.com> Reviewed-by: Régis Crelier <regis@google.com>