MIPS: [es6] Throw TypeError for computed static prototype property name

MIPS: [es6] Throw TypeError for computed static prototype property name

Port 8d946b9c3f6ea42dd5232c0529be4d47798b06aa

Original commit message:
The prototype of a class constructor function is read only. When we set
computed property names we were ignoring this and we were overriding the
property.

Since the prototype is the only possible own read only property on the
constructor function object we special case this so we do not have to
check this for every property in the class literal.

BUG=v8:3945
LOG=N

Committed: https://crrev.com/99e0f1a8db9a14d4df6f731a74ca6771ae6947a2
Cr-Commit-Position: refs/heads/master@{#27119}

[balazs.kilvady, 2015-03-10 18:07:50]

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

[paul.l..., 2015-03-10 18:12:00]

LGTM.

[balazs.kilvady, 2015-03-10 18:36:32]

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

[commit-bot: I haz the power, 2015-03-10 18:37:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/993963003/1

[commit-bot: I haz the power, 2015-03-10 19:06:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-10 19:06:26]

Patchset 1 (id:??) landed as
https://crrev.com/99e0f1a8db9a14d4df6f731a74ca6771ae6947a2
Cr-Commit-Position: refs/heads/master@{#27119}