Pull in latest analyzer_cli.

Pull in latest analyzer_cli.

The latest update to analyzer_cli makes it analyze all files using a
single context, so it can re-use analysis results; this makes it much
faster when analyzing large projects (~13x faster at analyzing pub,
for example).

On a temporary basis, this CL pulls in analyzer_cli using a git SHA
rather than a tag, since the new analyzer_cli features don't have a
release tag yet.  Once they have been validated on the buildbots, I'll
assign a release tag and update DEPS to point to it.

R=pquitslund@google.com

Committed: https://github.com/dart-lang/sdk/commit/3fd32d4d0520bb248a93d1423c2013b7f2ee975c

[Paul Berry, 2015-06-05 15:58:02]

paulberry@google.com changed reviewers:
+ pquitslund@google.com

[pquitslund, 2015-06-05 16:01:53]

LGTM.

Bombs away! :)

https://codereview.chromium.org/1170543003/diff/1/DEPS
File DEPS (right):

https://codereview.chromium.org/1170543003/diff/1/DEPS#newcode41
DEPS:41: "analyzer_cli_rev" : "@090c4859a2f88e62ae71a11583ba31e9999c74f6",
As per our conversation, I agree with the move to revs here (certainly
short-term if not long!)

[Paul Berry, 2015-06-05 16:07:21]

Committed patchset #1 (id:1) manually as
3fd32d4d0520bb248a93d1423c2013b7f2ee975c (presubmit successful).