c69cf9312d
This CL adds source information to the wrapping code for async and named parameters. This is done for the source mapping not making Chrome (etc) point to something completely wrong. Tests are added too. Bug: Change-Id: Ifcd16428e0ca8c273fd6377e93297bbfbb37d773 Reviewed-on: https://dart-review.googlesource.com/23480 Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>