Update all tests

tests/language/null_bottom_test.dart

Index: tests/language/null_bottom_test.dart
diff --git a/tests/language/null_bottom_test.dart b/tests/language/null_bottom_test.dart
index 53e866a9ee74a320a15bd386401f40cf8a705c50..0ecbd6d0fd8ce96ffd42f204fb8c2365c3e87da2 100644
--- a/tests/language/null_bottom_test.dart
+++ b/tests/language/null_bottom_test.dart
@@ -113,7 +113,7 @@ void testFunctionTypes() {
     // If type promotion succeeds, the static type is int->Null, otherwise
     // it's Null->int.
     fun2(42);  // Should not give a warning after type promotion.
-    fun2(null).abs();  /// 03: runtime error
+    fun2(null).abs();  //# 03: runtime error
   }
 }