Creating proto-recursive proxies might lead to instanceof while-looping
endlessly in Object::HasInPrototypeChain (For traps we already have stack
guards in place to prevent stack overflows). We prevent this by limiting
the number of proxies we visit in PrototypeIterator to a magic large number.

LOG=n
BUG=v8:1534

Review URL: https://codereview.chromium.org/1542583003

Cr-Commit-Position: refs/heads/master@{#33007}