Revert of Stop using deprecated hash_map in vtune-jit.cc.

Revert of Stop using deprecated hash_map in vtune-jit.cc. (patchset #1 id:1 of https://codereview.chromium.org/1924403002/ )

Reason for revert:
Breaks vtune-jit build, see https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20vtunejit/builds/10670

Original issue's description:
> Stop using deprecated hash_map in vtune-jit.cc.
>
> Fixes https://github.com/nodejs/node/issues/6422.

TBR=jochen@chromium.org,info@bnoordhuis.nl,ben@strongloop.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/987bd9ccc70ec1302321de88191c69e618f14085
Cr-Commit-Position: refs/heads/master@{#35917}

[Benedikt Meurer, 2016-04-30 18:24:45]

Created Revert of Stop using deprecated hash_map in vtune-jit.cc.

[commit-bot: I haz the power, 2016-04-30 18:24:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1940693002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1940693002/1

[commit-bot: I haz the power, 2016-04-30 18:25:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-01 22:04:11]

Description was changed from

==========
Revert of Stop using deprecated hash_map in vtune-jit.cc. (patchset #1 id:1 of
https://codereview.chromium.org/1924403002/ )

Reason for revert:
Breaks vtune-jit build, see
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20vtunejit/bui...

Original issue's description:
> Stop using deprecated hash_map in vtune-jit.cc.
> 
> Fixes https://github.com/nodejs/node/issues/6422.

TBR=jochen@chromium.org,info@bnoordhuis.nl,ben@strongloop.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Stop using deprecated hash_map in vtune-jit.cc. (patchset #1 id:1 of
https://codereview.chromium.org/1924403002/ )

Reason for revert:
Breaks vtune-jit build, see
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20vtunejit/bui...

Original issue's description:
> Stop using deprecated hash_map in vtune-jit.cc.
>
> Fixes https://github.com/nodejs/node/issues/6422.

TBR=jochen@chromium.org,info@bnoordhuis.nl,ben@strongloop.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/987bd9ccc70ec1302321de88191c69e618f14085
Cr-Commit-Position: refs/heads/master@{#35917}
==========

[commit-bot: I haz the power, 2016-05-01 22:04:11]

Patchset 1 (id:??) landed as
https://crrev.com/987bd9ccc70ec1302321de88191c69e618f14085
Cr-Commit-Position: refs/heads/master@{#35917}