Revert of Update V8 to version 5.2.20.

Revert of Update V8 to version 5.2.20. (patchset #1 id:1 of https://codereview.chromium.org/1884913002/ )

Reason for revert:
https://build.chromium.org/p/chromium.fyi/builders/WinClang/builds/205/steps/compile/logs/stdio

../../v8/src/runtime/runtime-atomics.cc(126,1):  error: unused function 'LoadSeqCst' [-Werror,-Wunused-function]
ATOMIC_OPS(int8_t, 8, char)
^
../../v8/src/runtime/runtime-atomics.cc(120,15):  note: expanded from macro 'ATOMIC_OPS'
  inline type LoadSeqCst(type* p) { return *p; }                            \
              ^

Original issue's description:
> Update V8 to version 5.2.20.
>
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/f7a11412..d8d54ea9
>
> Please follow these instructions for assigning/CC'ing issues:
> https://github.com/v8/v8/wiki/Triaging%20issues
>
> Please close rolling in case of a roll revert:
> https://v8-roll.appspot.com/
> This only works with a Google account.
>
> TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelheim@chromium.org
>
> Committed: https://crrev.com/31e492eab1deee4798c016ed4d7b306997f4dd82
> Cr-Commit-Position: refs/heads/master@{#386958}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,yangguo@chromium.org,v8-autoroll@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/d2de2a6ae68efabc28fa549f95e806fb510d0964
Cr-Commit-Position: refs/heads/master@{#386964}

[Nico, 2016-04-13 11:43:26]

Created Revert of Update V8 to version 5.2.20.

[commit-bot: I haz the power, 2016-04-13 11:43:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1877403004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1877403004/1

[Nico, 2016-04-13 11:44:04]

thakis@chromium.org changed reviewers:
+ binji@chromium.org

[Nico, 2016-04-13 11:44:04]

binji: fyi

(i want to test changes today to make win_clang a default-on trybot, so it needs
to be green)

[commit-bot: I haz the power, 2016-04-13 11:44:06]

Description was changed from

==========
Revert of Update V8 to version 5.2.20. (patchset #1 id:1 of
https://codereview.chromium.org/1884913002/ )

Reason for revert:
https://build.chromium.org/p/chromium.fyi/builders/WinClang/builds/205/steps/...

../../v8/src/runtime/runtime-atomics.cc(126,1):  error: unused function
'LoadSeqCst' [-Werror,-Wunused-function]
ATOMIC_OPS(int8_t, 8, char)
^
../../v8/src/runtime/runtime-atomics.cc(120,15):  note: expanded from macro
'ATOMIC_OPS'
  inline type LoadSeqCst(type* p) { return *p; }                            \
              ^

Original issue's description:
> Update V8 to version 5.2.20.
> 
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/f7a11412..d8d54ea9
> 
> Please follow these instructions for assigning/CC'ing issues:
> https://github.com/v8/v8/wiki/Triaging%20issues
> 
> Please close rolling in case of a roll revert:
> https://v8-roll.appspot.com/
> This only works with a Google account.
> 
>
TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelhe...
> 
> Committed: https://crrev.com/31e492eab1deee4798c016ed4d7b306997f4dd82
> Cr-Commit-Position: refs/heads/master@{#386958}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,yangg...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Update V8 to version 5.2.20. (patchset #1 id:1 of
https://codereview.chromium.org/1884913002/ )

Reason for revert:
https://build.chromium.org/p/chromium.fyi/builders/WinClang/builds/205/steps/...

../../v8/src/runtime/runtime-atomics.cc(126,1):  error: unused function
'LoadSeqCst' [-Werror,-Wunused-function]
ATOMIC_OPS(int8_t, 8, char)
^
../../v8/src/runtime/runtime-atomics.cc(120,15):  note: expanded from macro
'ATOMIC_OPS'
  inline type LoadSeqCst(type* p) { return *p; }                            \
              ^

Original issue's description:
> Update V8 to version 5.2.20.
> 
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/f7a11412..d8d54ea9
> 
> Please follow these instructions for assigning/CC'ing issues:
> https://github.com/v8/v8/wiki/Triaging%20issues
> 
> Please close rolling in case of a roll revert:
> https://v8-roll.appspot.com/
> This only works with a Google account.
> 
>
TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelhe...
> 
> Committed: https://crrev.com/31e492eab1deee4798c016ed4d7b306997f4dd82
> Cr-Commit-Position: refs/heads/master@{#386958}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,yangg...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

[commit-bot: I haz the power, 2016-04-13 11:44:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-13 11:45:38]

Description was changed from

==========
Revert of Update V8 to version 5.2.20. (patchset #1 id:1 of
https://codereview.chromium.org/1884913002/ )

Reason for revert:
https://build.chromium.org/p/chromium.fyi/builders/WinClang/builds/205/steps/...

../../v8/src/runtime/runtime-atomics.cc(126,1):  error: unused function
'LoadSeqCst' [-Werror,-Wunused-function]
ATOMIC_OPS(int8_t, 8, char)
^
../../v8/src/runtime/runtime-atomics.cc(120,15):  note: expanded from macro
'ATOMIC_OPS'
  inline type LoadSeqCst(type* p) { return *p; }                            \
              ^

Original issue's description:
> Update V8 to version 5.2.20.
> 
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/f7a11412..d8d54ea9
> 
> Please follow these instructions for assigning/CC'ing issues:
> https://github.com/v8/v8/wiki/Triaging%20issues
> 
> Please close rolling in case of a roll revert:
> https://v8-roll.appspot.com/
> This only works with a Google account.
> 
>
TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelhe...
> 
> Committed: https://crrev.com/31e492eab1deee4798c016ed4d7b306997f4dd82
> Cr-Commit-Position: refs/heads/master@{#386958}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,yangg...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Update V8 to version 5.2.20. (patchset #1 id:1 of
https://codereview.chromium.org/1884913002/ )

Reason for revert:
https://build.chromium.org/p/chromium.fyi/builders/WinClang/builds/205/steps/...

../../v8/src/runtime/runtime-atomics.cc(126,1):  error: unused function
'LoadSeqCst' [-Werror,-Wunused-function]
ATOMIC_OPS(int8_t, 8, char)
^
../../v8/src/runtime/runtime-atomics.cc(120,15):  note: expanded from macro
'ATOMIC_OPS'
  inline type LoadSeqCst(type* p) { return *p; }                            \
              ^

Original issue's description:
> Update V8 to version 5.2.20.
>
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/f7a11412..d8d54ea9
>
> Please follow these instructions for assigning/CC'ing issues:
> https://github.com/v8/v8/wiki/Triaging%20issues
>
> Please close rolling in case of a roll revert:
> https://v8-roll.appspot.com/
> This only works with a Google account.
>
>
TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelhe...
>
> Committed: https://crrev.com/31e492eab1deee4798c016ed4d7b306997f4dd82
> Cr-Commit-Position: refs/heads/master@{#386958}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,yangg...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/d2de2a6ae68efabc28fa549f95e806fb510d0964
Cr-Commit-Position: refs/heads/master@{#386964}
==========

[commit-bot: I haz the power, 2016-04-13 11:45:39]

Patchset 1 (id:??) landed as
https://crrev.com/d2de2a6ae68efabc28fa549f95e806fb510d0964
Cr-Commit-Position: refs/heads/master@{#386964}

[Michael Achenbach, 2016-04-13 11:59:18]

I guess we also need some v8-side win-clang bots...