tree cd25ddf00a68f391a535c839db33a35a5e3d8ea5
parent ecf0b78065be02b9f800a1cb37c80c7dca58690b
author Ole Rehmsen <oler@google.com> 1558015833 +0200
committer Ben Rohlfs <brohlfs@google.com> 1558623748 +0200

Prepare Polymer 2 tests

Include an empty file - this will be filled with Polymer 2 specific code
later, and it's useful to have the empty file now because the Polymer 2
change will likely be pending very long, and we would like to avoid
conflicts keeping so many files in a pending change for long.

Also include a harmless polyfill that we need for Polymer 2.

Change-Id: I504e52ae937edff1d35b29700882b522ef4dbc64