tree ab98ffcbb294f3cd788fb3035fc35ffd06a432f6
parent 3039cd0f7cb191d82919b0d5c951184a98d7e935
author Aaron Zinman <aaron@azinman.com> 1466579669 -0700
committer Aaron Zinman <zinman@google.com> 1466613801 +0000

swift: Implement Collection.destroy, fixing HLAPI collection unit test

Implements Collection.destroy and fixes the HLAPI unit tests that
were not passing because old collections were not destroyed.

Change-Id: I1840debe661f6f027d8d72121e9f8b70b2327e03