Avoid using computed property literals in TypedArrays code

Avoid using computed property literals in TypedArrays code

Computed property literals don't seem to work in nosnap yet,
leading to a syntax error.

R=adamk,arv

Committed: https://crrev.com/e1efb4be112c0d6d095628af125c2eb7ae7fcd99
Cr-Commit-Position: refs/heads/master@{#29032}

[adamk, 2015-06-15 20:28:04]

lgtm

[Dan Ehrenberg, 2015-06-15 20:28:33]

The CQ bit was checked by littledan@chromium.org

[commit-bot: I haz the power, 2015-06-15 20:28:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1189643002/1

[commit-bot: I haz the power, 2015-06-15 21:11:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-15 21:11:24]

Patchset 1 (id:??) landed as
https://crrev.com/e1efb4be112c0d6d095628af125c2eb7ae7fcd99
Cr-Commit-Position: refs/heads/master@{#29032}

[arv (Not doing code reviews), 2015-06-16 16:41:05]

LGTM

https://codereview.chromium.org/1189643002/diff/1/src/typedarray.js
File src/typedarray.js (right):

https://codereview.chromium.org/1189643002/diff/1/src/typedarray.js#newcode147
src/typedarray.js:147: // Rephrase when they do.
I guess we cannot use shipping features until the flag is removed?