Import Blink layout tests for Promises.
We omitted some tests (for example workers tests).
We fixed some wrong test expectations.

BUG=347095
LOG=N
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/182713002

Patch from Yutaka Hirano <yhirano@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19757 ce2b1a6d-e550-0410-aec6-3dcde31c8c00