tree f94b3196f0aff4b3f05ad9d8a2d3dd5bfe7bdf8a
parent da0c98224563eba13edd159b8fb4acfe1c32e2b9
author William Hesse <whesse@google.com> 1490963108 +0200
committer William Hesse <whesse@google.com> 1490963108 +0200

Merge to dev patch for:

Strong mode changelog updates for 1.23.0

Update changelog for down cast composite changes, and new mixin
restriction.  Also move Strong Mode section underneath Language.

BUG=
R=kevmoo@google.com

Review-Url: https://codereview.chromium.org/2788703002 .

patch from issue 2788663004 at patchset 1 (http://crrev.com/2788663004#ps1)