Merge branch 'stable-3.0' into stable-3.1

* stable-3.0:
  Support comment visibility

Change-Id: Ifa68bda154b3402bca04b3de23f628c5c4e69eb8
tree: e827d4333499fca1a976a78b50124ec78877d9f1
  1. .settings/
  2. src/
  3. .gitignore
  4. BUILD
  5. external_plugin_deps.bzl
  6. LICENSE