[test262-es6] Temporary disable some tests

[test262-es6] Temporary disable some tests

These tests have issues with our harness.

Upstream fix: https://github.com/tc39/test262/pull/309

BUG=N
LOG=N
TBR=machenbach@chromium.org

Committed: https://crrev.com/eed7363a0da0f21c3eee6c052507299d9b707462
Cr-Commit-Position: refs/heads/master@{#28881}

[arv (Not doing code reviews), 2015-06-09 18:56:29]

The CQ bit was checked by arv@chromium.org

[commit-bot: I haz the power, 2015-06-09 18:56:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1176573002/1

[arv (Not doing code reviews), 2015-06-09 19:10:30]

Committed patchset #1 (id:1) manually as
eed7363a0da0f21c3eee6c052507299d9b707462 (presubmit successful).

[commit-bot: I haz the power, 2015-06-09 19:10:32]

Patchset 1 (id:??) landed as
https://crrev.com/eed7363a0da0f21c3eee6c052507299d9b707462
Cr-Commit-Position: refs/heads/master@{#28881}

[Michael Achenbach, 2015-06-10 06:35:08]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1169903006/ by machenbach@chromium.org.

The reason for reverting is: [Sheriff] Prepares revert of
https://codereview.chromium.org/1136553008.