Add getVersion and setLibraryDebuggable RPCs to the service protocol.

runtime/observatory/tests/service/get_object_rpc_test.dart

Index: runtime/observatory/tests/service/get_object_rpc_test.dart
diff --git a/runtime/observatory/tests/service/get_object_rpc_test.dart b/runtime/observatory/tests/service/get_object_rpc_test.dart
index b7b511ee020ea1c1f65ea4ace24a5a9781b553e2..e05294934c1776f52bea5835b96e7e178a6e851c 100644
--- a/runtime/observatory/tests/service/get_object_rpc_test.dart
+++ b/runtime/observatory/tests/service/get_object_rpc_test.dart
@@ -125,6 +125,7 @@ var tests = [
     expect(result['name'], equals('get_object_rpc_test'));
     expect(result['uri'], startsWith('file:'));
     expect(result['uri'], endsWith('get_object_rpc_test.dart'));
+    expect(result['debuggable'], equals(true));
     expect(result['imports'].length, isPositive);
     expect(result['imports'][0]['type'], equals('@Library'));
     expect(result['scripts'].length, isPositive);