Update all tests

tests/language/async_or_generator_return_type_stacktrace_test.dart

Index: tests/language/async_or_generator_return_type_stacktrace_test.dart
diff --git a/tests/language/async_or_generator_return_type_stacktrace_test.dart b/tests/language/async_or_generator_return_type_stacktrace_test.dart
index 1fa3d9378e4697437f910b9b007b46df615a6ad5..84d8d3fcab889b55609d47a9529eb7ce996f48b3 100644
--- a/tests/language/async_or_generator_return_type_stacktrace_test.dart
+++ b/tests/language/async_or_generator_return_type_stacktrace_test.dart
@@ -4,13 +4,13 @@
 
 import "package:expect/expect.dart";
 
-void badReturnTypeAsync() async {}  /// 01: static type warning
-void badReturnTypeAsyncStar() async* {}  /// 02: static type warning
-void badReturnTypeSyncStar() sync* {}  /// 03: static type warning
+void badReturnTypeAsync() async {}  //# 01: static type warning
+void badReturnTypeAsyncStar() async* {}  //# 02: static type warning
+void badReturnTypeSyncStar() sync* {}  //# 03: static type warning
 
 main() {
   try {
-    badReturnTypeAsync();  /// 01: continued
+    badReturnTypeAsync();  //# 01: continued
   } catch(e, st) {
     Expect.isTrue(e is TypeError, "wrong exception type");
     Expect.isTrue(st.toString().contains("badReturnTypeAsync"),
@@ -18,7 +18,7 @@ main() {
   }
 
   try {
-    badReturnTypeAsyncStar();  /// 02: continued
+    badReturnTypeAsyncStar();  //# 02: continued
   } catch(e, st) {
     Expect.isTrue(e is TypeError, "wrong exception type");
     Expect.isTrue(st.toString().contains("badReturnTypeAsyncStar"),
@@ -26,7 +26,7 @@ main() {
   }
 
   try {
-    badReturnTypeSyncStar();  /// 03: continued
+    badReturnTypeSyncStar();  //# 03: continued
   } catch(e, st) {
     Expect.isTrue(e is TypeError, "wrong exception type");
     Expect.isTrue(st.toString().contains("badReturnTypeSyncStar"),