Prepare for analyzer 0.31.2-alpha.1, front_end 0.1.0-alpha.11, and ke…

…rnel 0.3.0-alpha.11.

This CL looks a little weird because a previous CL,
https://dart-review.googlesource.com/46126 partially updated
the yaml files but the packages were never published.

Bug: dartbug.com/32509
Change-Id: I2ab19b6165fcd9d748defb6eeeb5efff2925df6c
Reviewed-on: https://dart-review.googlesource.com/47904
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Janice Collins <[email protected]>