Add getVersion and setLibraryDebuggable RPCs to the service protocol.

Add getVersion and setLibraryDebuggable RPCs to the service protocol.

BUG=
R=johnmccutchan@google.com

Committed: https://github.com/dart-lang/sdk/commit/67adc6102db3bdf9d26ab91de95eb2333d21f371

[turnidge, 2015-05-28 19:49:03]

turnidge@google.com changed reviewers:
+ johnmccutchan@google.com

[Cutch, 2015-05-28 19:59:19]

LGTM with a suggestion

https://codereview.chromium.org/1149373006/diff/1/runtime/vm/service.cc
File runtime/vm/service.cc (right):

https://codereview.chromium.org/1149373006/diff/1/runtime/vm/service.cc#newco...
runtime/vm/service.cc:1887: JSONObject jsobj(js);
Might be worth making a Success function so we can just write:

return Success(js);

[turnidge, 2015-05-28 20:06:58]

https://codereview.chromium.org/1149373006/diff/1/runtime/vm/service.cc
File runtime/vm/service.cc (right):

https://codereview.chromium.org/1149373006/diff/1/runtime/vm/service.cc#newco...
runtime/vm/service.cc:1887: JSONObject jsobj(js);
On 2015/05/28 19:59:19, Cutch wrote:
> Might be worth making a Success function so we can just write:
> 
> return Success(js);

Added PrintSuccess.... now looks like:

PrintSuccess(js);
return true;

[turnidge, 2015-05-28 20:34:28]

Committed patchset #4 (id:60001) manually as
67adc6102db3bdf9d26ab91de95eb2333d21f371 (presubmit successful).