scala/scala — pull request #3840 by Ichoran (2014-06-28 02:29:29+00:00)
Title: SI-8638  Empty UnrolledBuffer hangs on prepend.

Tracked down bug to incorrect recursion in insertAll. Fixed by adding a missing case (which incidentally will provide better performance when adding to the end of a block).

No specific tests, as this is caught by quasi-complete collections tests.