Async-step, first cut.

runtime/observatory/tests/service/break_on_function_test.dart

Index: runtime/observatory/tests/service/break_on_function_test.dart
diff --git a/runtime/observatory/tests/service/break_on_function_test.dart b/runtime/observatory/tests/service/break_on_function_test.dart
index bbe907922a591177a04c28f0e3ee41f839952104..1988578679b9479595be6955ee6a176454dd83bc 100644
--- a/runtime/observatory/tests/service/break_on_function_test.dart
+++ b/runtime/observatory/tests/service/break_on_function_test.dart
@@ -40,31 +40,11 @@ hasStoppedAtBreakpoint,
 resumeIsolate,
 
 hasStoppedAtBreakpoint,
-
-// We are at the breakpoint on line 11.
-(Isolate isolate) async {
-  ServiceMap stack = await isolate.getStack();
-  expect(stack.type, equals('Stack'));
-  expect(stack['frames'].length, greaterThanOrEqualTo(1));
-
-  Script script = stack['frames'][0].location.script;
-  expect(stack['frames'][0].location.tokenPos, equals(22));
-},
-
+stoppedAtLine(11),
 resumeIsolate,
 
 hasStoppedAtBreakpoint,
-
-// We are at the breakpoint on line 11.
-(Isolate isolate) async {
-  ServiceMap stack = await isolate.getStack();
-  expect(stack.type, equals('Stack'));
-  expect(stack['frames'].length, greaterThanOrEqualTo(1));
-
-  Script script = stack['frames'][0].location.script;
-  expect(stack['frames'][0].location.tokenPos, equals(22));
-},
-
+stoppedAtLine(11),
 resumeIsolate,
 
 ];