V8 internally uses conversions.h to convert number to string, we can use these methods too instead of slow std::stringstream with std::locale.

BUG=chromium:661497,v8:5551
R=dgozman@chromium.org

Review-Url: https://codereview.chromium.org/2534013002
Cr-Commit-Position: refs/heads/master@{#41334}

debug-interface.h contains part of v8-debug.h that is used by src/inspector.

BUG=v8:5510
R=dgozman@chromium.org, yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2423713003
Cr-Commit-Position: refs/heads/master@{#40404}

It will allow timeline to show JS profile on code evaluated from console.

BUG=chromium:655430

Committed: https://crrev.com/6882c91ecd222f3ee2feb42ad73fbc796d5c8172
Review-Url: https://codereview.chromium.org/2413943002
Cr-Original-Commit-Position: refs/heads/master@{#40289}
Cr-Commit-Position: refs/heads/master@{#40323}

Revert of [inspector] Record EvaluateScript trace event upon console evaluation (patchset #2 id:20001 of https://codereview.chromium.org/2413943002/ )

Reason for revert:
Breaks layout tests:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/10647

See also:
https://github.com/v8/v8/wiki/Blink-layout-tests

Original issue's description:
> [inspector] Record EvaluateScript trace event upon console evaluation
>
> It will allow timeline to show JS profile on code evaluated from console.
>
> BUG=chromium:655430
>
> Committed: https://crrev.com/6882c91ecd222f3ee2feb42ad73fbc796d5c8172
> Cr-Commit-Position: refs/heads/master@{#40289}

TBR=caseq@chromium.org,paulirish@chromium.org,dgozman@chromium.org,alph@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:655430

Review-Url: https://codereview.chromium.org/2416213002
Cr-Commit-Position: refs/heads/master@{#40299}

It will allow timeline to show JS profile on code evaluated from console.

BUG=chromium:655430

Review-Url: https://codereview.chromium.org/2413943002
Cr-Commit-Position: refs/heads/master@{#40289}

BUG=chromium:635948
R=dgozman@chromium.org,alph@chromium.org

Review-Url: https://codereview.chromium.org/2340763003
Cr-Commit-Position: refs/heads/master@{#39453}

BUG=chromium:635948
R=dgozman@chromium.org,alph@chromium.org

Review-Url: https://codereview.chromium.org/2336023002
Cr-Commit-Position: refs/heads/master@{#39363}

Going forward we may relax this, but it is a conscious decision to be made.

BUG=chromium:635948
R=dgozman@chromium.org,alph@chromium.org

Review-Url: https://codereview.chromium.org/2337523003
Cr-Commit-Position: refs/heads/master@{#39362}