MIPS: Improve '[es6] When comparing two symbols we may need to throw a TypeError'.

MIPS: Improve '[es6] When comparing two symbols we may need to throw a TypeError'.

Improve d26f5d392317dcf1eef3693eadfa1b95a8850df8

Original commit message:
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=

Committed: https://crrev.com/2a86d26f33a60cf42e407f8eb07139fd02d81f20
Cr-Commit-Position: refs/heads/master@{#28240}

[balazs.kilvady, 2015-05-05 16:22:18]

balazs.kilvady@imgtec.com changed reviewers:
+ akos.palfi@imgtec.com, arv@chromium.org, danno@chromium.org,
paul.lind@imgtec.com

[paul.l..., 2015-05-05 16:29:32]

paul.lind@imgtec.com changed reviewers:
+ hablich@chromium.org

[paul.l..., 2015-05-05 16:29:32]

lgtm

[arv (Not doing code reviews), 2015-05-05 16:35:05]

LGTM 

Thanks

[balazs.kilvady, 2015-05-05 16:36:03]

The CQ bit was checked by balazs.kilvady@imgtec.com

[commit-bot: I haz the power, 2015-05-05 16:36:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1124863004/1

[commit-bot: I haz the power, 2015-05-05 18:50:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-05 18:51:16]

Patchset 1 (id:??) landed as
https://crrev.com/2a86d26f33a60cf42e407f8eb07139fd02d81f20
Cr-Commit-Position: refs/heads/master@{#28240}