Remove flaky check from reanalyze_concurrent_test.

This should avoid sporadic false failures with this test.  If in the
future we genuinely regress bug 21448, there is a danger that this
test won't catch it reliably, but that is mitigated by the fact that
(a) even flaky failures do get noticed, and (b) the bug was severe
enough that it probably would be noticed in manual testing.  The extra
risk seems worth it to avoid the sporadic false failures we've been
seeing.

BUG=dartbug.com/21638
R=scheglov@google.com

Review URL: https://codereview.chromium.org//724403003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41870 260f80e4-7a28-3924-810f-c04153c831b5
Revert "Encode super calls via extra properties on prototypes."
Revert "Only emit support for aliasing methods if super calls are present."

TBR=herhut@google.com
BUG=

Review URL: https://codereview.chromium.org//744823004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41871 260f80e4-7a28-3924-810f-c04153c831b5
Dedupe code for array/object initialization on ARM.

This creates fewer places to audit the GC's write barrier logic.

R=zra@google.com

Review URL: https://codereview.chromium.org//746623002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41872 260f80e4-7a28-3924-810f-c04153c831b5
Resubmit bigint changes of r41817 that were later reverted.
An inliner issue was fixed in r41840.
A missing length increment is added by this cl.
Minor improvements and comments.

R=zra@google.com

Review URL: https://codereview.chromium.org//747483002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41873 260f80e4-7a28-3924-810f-c04153c831b5
Fix dartbug.com/21671:

- Properly canonicalize enum values.
- Ensure canonical objects are deserialized properly.

R=asiva@google.com

Review URL: https://codereview.chromium.org//745023002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41874 260f80e4-7a28-3924-810f-c04153c831b5
Revert "Revert "Encode super calls via extra properties on prototypes.""

My revert of r41550 + r41831 was bad, so reverting the revert to go back to the broken state reported in issue 21666, and will attempt a cleaner revert.

TBR=herhut@google.com
BUG=

Review URL: https://codereview.chromium.org//737383003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41875 260f80e4-7a28-3924-810f-c04153c831b5
Redo "Revert "Encode super calls via extra properties on prototypes.""

Second attempt to revert r41550 + r41831

TBR=herhut@google.com

Review URL: https://codereview.chromium.org//743383002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41876 260f80e4-7a28-3924-810f-c04153c831b5
- Do not attempt to canonicalize while we debug test failures.

Review URL: https://codereview.chromium.org//747673002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41877 260f80e4-7a28-3924-810f-c04153c831b5