Set 'includeSources' to 'true' so that stack traces include line / column.
Set 'includeSources' to 'true' so that stack traces include line / column.

Change-Id: I0db127e55e95a8535bc853ba9b0a45451a151e2f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242381
Reviewed-by: Johnni Winther <0f64ef784d57ffb064b634040f9eeba0d33d0be4@google.com>
Commit-Queue: Konstantin Shcheglov <09e4d7516628963212bf4aace2f97603d2b706e4@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk