Fix warnings_checker.dart handling of multitests

tests/language_strong/getter_no_setter2_test.dart

Index: tests/language_strong/getter_no_setter2_test.dart
diff --git a/tests/language_strong/getter_no_setter2_test.dart b/tests/language_strong/getter_no_setter2_test.dart
index 412df61de5e3f2ec4f8e6df99b7b45089af1197f..a798b7e9e9388aff9d303389d999656cd4d27c03 100644
--- a/tests/language_strong/getter_no_setter2_test.dart
+++ b/tests/language_strong/getter_no_setter2_test.dart
@@ -12,25 +12,25 @@ class Example {
     {
       bool flag_exception = false;
       try {
-        nextVar++; // /// 03: static type warning
+        nextVar++; // //# 03: static type warning
       } catch (excpt) {
         flag_exception = true;
       }
-      Expect.isTrue(flag_exception); // /// 03: continued
+      Expect.isTrue(flag_exception); // //# 03: continued
     }
     {
       bool flag_exception = false;
       try {
-        this.nextVar++; // /// 00: static type warning
+        this.nextVar++; // //# 00: static type warning
       } catch (excpt) {
         flag_exception = true;
       }
-      Expect.isTrue(flag_exception); //  /// 00: continued
+      Expect.isTrue(flag_exception); //  //# 00: continued
     }
   }
   static test() {
-    nextVar++; // /// 01: runtime error
-    this.nextVar++; // /// 02: compile-time error
+    nextVar++; // //# 01: runtime error
+    this.nextVar++; // //# 02: compile-time error
   }
 }