pkg/vm_service_client: add getSourceReport to VMServiceReference

test/breakpoint_test.dart

Index: test/breakpoint_test.dart
diff --git a/test/breakpoint_test.dart b/test/breakpoint_test.dart
index 38b1f3e7565b7142f5372f43b9a5096125765695..cbae151f213974b29ef2eed41725115adffb9b48 100644
--- a/test/breakpoint_test.dart
+++ b/test/breakpoint_test.dart
@@ -25,7 +25,7 @@ void main() {
 
     var isolate = (await client.getVM()).isolates.first;
 
-    var stdout = new StreamQueue(lines.bind(isolate.stdout));
+    var stdout = new StreamQueue(isolate.stdout.transform(lines));
     var line1 = new ResultFuture(stdout.next);
     var line2 = new ResultFuture(stdout.next.catchError((_) {}));
 
@@ -64,7 +64,7 @@ void main() {
 
     var isolate = (await client.getVM()).isolates.first;
 
-    var stdout = new StreamQueue(lines.bind(isolate.stdout));
+    var stdout = new StreamQueue(isolate.stdout.transform(lines));
     expect(stdout.next, completion(equals("one")));
     expect(stdout.next, completion(equals("two")));