Fix struct alignment for SIMD objects.

Fix struct alignment for SIMD objects.

This is caused by differnet packing of structs in the host- and target-toolchain -
in this case the Android XARM compiler does align the SIMD payload differently
than the SIMARM host.

(also see a similar bug fix for doubles/mints: 5dc51af924b9d3cb1005a530fe95dc1663b1eb53)

BUG=
R=rmacnak@google.com

Committed: https://github.com/dart-lang/sdk/commit/fb75e1e5e481334260b2fd467393a367fc74389a

[Florian Schneider, 2016-06-13 22:34:54]

Description was changed from

==========
Fix struct alignment for SIMD objects.

This is caused by differnet packing of structs in the host- and target-toolchain
-
in this case the Android ARM compiler does align the SIMD payload differently
than the host compiler.

BUG=
==========

to

==========
Fix struct alignment for SIMD objects.

This is caused by differnet packing of structs in the host- and target-toolchain
-
in this case the Android XARM compiler does align the SIMD payload differently
than the SIMARM host.

(also see a similar bug fix for doubles/mints:
5dc51af924b9d3cb1005a530fe95dc1663b1eb53)

BUG=
==========

[Florian Schneider, 2016-06-13 22:35:21]

fschneider@google.com changed reviewers:
+ rmacnak@google.com

[rmacnak, 2016-06-13 23:02:00]

lgtm

[Florian Schneider, 2016-06-13 23:06:07]

Description was changed from

==========
Fix struct alignment for SIMD objects.

This is caused by differnet packing of structs in the host- and target-toolchain
-
in this case the Android XARM compiler does align the SIMD payload differently
than the SIMARM host.

(also see a similar bug fix for doubles/mints:
5dc51af924b9d3cb1005a530fe95dc1663b1eb53)

BUG=
==========

to

==========
Fix struct alignment for SIMD objects.

This is caused by differnet packing of structs in the host- and target-toolchain
-
in this case the Android XARM compiler does align the SIMD payload differently
than the SIMARM host.

(also see a similar bug fix for doubles/mints:
5dc51af924b9d3cb1005a530fe95dc1663b1eb53)

BUG=
R=rmacnak@google.com

Committed:
https://github.com/dart-lang/sdk/commit/fb75e1e5e481334260b2fd467393a367fc74389a
==========

[Florian Schneider, 2016-06-13 23:06:09]

Committed patchset #1 (id:1) manually as
fb75e1e5e481334260b2fd467393a367fc74389a (presubmit successful).