[es6] When comparing two symbols we may need to throw a TypeError

[es6] When comparing two symbols we may need to throw a TypeError

When comparing a symbol to istself using <, <=, > or >= we need to
throw a TypeError. This is correctly handled in the runtime function
so if we are comparing a symbol fall back to use the runtime.

BUG=v8:4073
LOG=Y
R=rossberg@chromium.org

Committed: https://crrev.com/d26f5d392317dcf1eef3693eadfa1b95a8850df8
Cr-Commit-Position: refs/heads/master@{#28226}

[arv (Not doing code reviews), 2015-05-04 19:51:13]

PTAL

[rossberg, 2015-05-05 14:02:15]

lgtm

[arv (Not doing code reviews), 2015-05-05 14:08:26]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-05-05 14:08:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1125783002/20001

[commit-bot: I haz the power, 2015-05-05 14:11:52]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-05 14:18:09]

Patchset 2 (id:??) landed as
https://crrev.com/d26f5d392317dcf1eef3693eadfa1b95a8850df8
Cr-Commit-Position: refs/heads/master@{#28226}