This syntax was formerly legal per ECMAScript, but has been a
SyntaxError for some time now. V8 deviates from spec in that it
is instead a runtime error; we'd like to know if we can get
away with removing it (at least in sloppy mode) or if the spec
should be changed.

c.f. https://github.com/tc39/ecma262/issues/257#issuecomment-195106880

Also add self to authors file

BUG=v8:4480

Review-Url: https://codereview.chromium.org/2599253002
Cr-Commit-Position: refs/heads/master@{#41960}