Move class tests to es6 directory BUG=v8:3330 LOG=N R=adamk Review URL: https://codereview.chromium.org/1213813003 Cr-Commit-Position: refs/heads/master@{#29336}
BUG=v8:3885 LOG=N R=adamk@chromium.org, dslomov@chromium.org Review URL: https://codereview.chromium.org/916293004 Cr-Commit-Position: refs/heads/master@{#26632}