Fix parallel move code for swapping SIMD registers on ARM and ARM64.

The old code did not swap the full quad-word register, but only half.

R=zerny@google.com

Review URL: https://codereview.chromium.org//760383005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42044 260f80e4-7a28-3924-810f-c04153c831b5
Incremental resolution of updated DartDoc comments.

R=brianwilkerson@google.com
BUG=

Review URL: https://codereview.chromium.org//758383003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42045 260f80e4-7a28-3924-810f-c04153c831b5
Set  for all preceding comment tokens.

R=brianwilkerson@google.com
BUG=

Review URL: https://codereview.chromium.org//766233002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42046 260f80e4-7a28-3924-810f-c04153c831b5