Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

These two libraries are only used in instrumented builds.  They haven't
been updated since https://codereview.chromium.org/1559483002
Roll them to pick up many warning fixes and to not fall behind upstream too
much.

(The hashes underwent a no-op change in https://codereview.chromium.org/2089613003)

libcxx:
https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/b1ece9c..57c4059

libcxxabi:
https://chromium.googlesource.com/chromium/llvm-project/libcxxabi/+log/0edb61e..700fa35

BUG=709456
Committed: 896bb2648fce0e3ca129bff7d3b5f1d377ba61f0

[Nico, 2017-05-01 21:06:01]

Description was changed from

==========
Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

These two libraries are only used in instrumented builds.  They haven't
been updated since https://codereview.chromium.org/1559483002
Roll them to pick up many warning fixes and to not fall behind upstream too
much.

libcxx:
https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/48198f91....

libcxxabi:
https://chromium.googlesource.com/chromium/llvm-project/libcxxabi/+log/4ad100...

BUG=709456
==========

to

==========
Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

These two libraries are only used in instrumented builds.  They haven't
been updated since https://codereview.chromium.org/1559483002
Roll them to pick up many warning fixes and to not fall behind upstream too
much.

(The hashes underwent a no-op change in
https://codereview.chromium.org/2089613003)

libcxx:
https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/b1ece9c.....

libcxxabi:
https://chromium.googlesource.com/chromium/llvm-project/libcxxabi/+log/4ad100...

BUG=709456
==========

[Nico, 2017-05-01 21:06:29]

Description was changed from

==========
Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

These two libraries are only used in instrumented builds.  They haven't
been updated since https://codereview.chromium.org/1559483002
Roll them to pick up many warning fixes and to not fall behind upstream too
much.

(The hashes underwent a no-op change in
https://codereview.chromium.org/2089613003)

libcxx:
https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/b1ece9c.....

libcxxabi:
https://chromium.googlesource.com/chromium/llvm-project/libcxxabi/+log/4ad100...

BUG=709456
==========

to

==========
Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

These two libraries are only used in instrumented builds.  They haven't
been updated since https://codereview.chromium.org/1559483002
Roll them to pick up many warning fixes and to not fall behind upstream too
much.

(The hashes underwent a no-op change in
https://codereview.chromium.org/2089613003)

libcxx:
https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/b1ece9c.....

libcxxabi:
https://chromium.googlesource.com/chromium/llvm-project/libcxxabi/+log/0edb61...

BUG=709456
==========

[Nico, 2017-05-01 21:07:03]

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

[Nico, 2017-05-01 21:07:17]

Description was changed from

==========
Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

These two libraries are only used in instrumented builds.  They haven't
been updated since https://codereview.chromium.org/1559483002
Roll them to pick up many warning fixes and to not fall behind upstream too
much.

(The hashes underwent a no-op change in
https://codereview.chromium.org/2089613003)

libcxx:
https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/b1ece9c.....

libcxxabi:
https://chromium.googlesource.com/chromium/llvm-project/libcxxabi/+log/0edb61...

BUG=709456
==========

to

==========
Sanitizers: Roll in 16 months of libcxx and libcxxabi changes.

These two libraries are only used in instrumented builds.  They haven't
been updated since https://codereview.chromium.org/1559483002
Roll them to pick up many warning fixes and to not fall behind upstream too
much.

(The hashes underwent a no-op change in
https://codereview.chromium.org/2089613003)

libcxx:
https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/b1ece9c.....

libcxxabi:
https://chromium.googlesource.com/chromium/llvm-project/libcxxabi/+log/0edb61...

BUG=709456

Committed: 896bb2648fce0e3ca129bff7d3b5f1d377ba61f0
==========

[Nico, 2017-05-01 21:07:17]

Committed patchset #1 (id:1) manually as
896bb2648fce0e3ca129bff7d3b5f1d377ba61f0 (presubmit successful).