Even easier observatory testing.

Even easier observatory testing.

Tester/testee code in single file.
Less boilerplate: shared setup and future chaining.
Also supports concurrent testee (see gc_test).
Simplify all exisiting tests to use new style.

R=johnmccutchan@google.com

Committed: https://code.google.com/p/dart/source/detail?r=39151

[Cutch, 2014-08-12 14:33:07]

lgtm w/c

https://codereview.chromium.org/460523002/diff/40001/runtime/bin/vmservice/ob...
File runtime/bin/vmservice/observatory/test/allocations_test.dart (right):

https://codereview.chromium.org/460523002/diff/40001/runtime/bin/vmservice/ob...
runtime/bin/vmservice/observatory/test/allocations_test.dart:24: return
lib.classes.first.load().then((Class fooClass) {
Will 'Foo' always be the first class?

[koda, 2014-08-12 16:53:08]

https://codereview.chromium.org/460523002/diff/40001/runtime/bin/vmservice/ob...
File runtime/bin/vmservice/observatory/test/allocations_test.dart (right):

https://codereview.chromium.org/460523002/diff/40001/runtime/bin/vmservice/ob...
runtime/bin/vmservice/observatory/test/allocations_test.dart:24: return
lib.classes.first.load().then((Class fooClass) {
On 2014/08/12 14:33:07, Cutch wrote:
> Will 'Foo' always be the first class?

It's actually the only class; I added an 'expect'.

[koda, 2014-08-12 17:55:28]

Committed patchset #4 manually as r39151 (presubmit successful).