Update test.dart for detection output of machine formatted errors

tools/testing/dart/multitest.dart

Index: tools/testing/dart/multitest.dart
diff --git a/tools/testing/dart/multitest.dart b/tools/testing/dart/multitest.dart
index a637c987e23872ae08b9ca0b87ac5a08127bd96f..c1f992a5e68a5d8445236acec32b7843fc90f646 100644
--- a/tools/testing/dart/multitest.dart
+++ b/tools/testing/dart/multitest.dart
@@ -127,7 +127,8 @@ void DoMultitest(String filename,
                                  bool isNegative,
                                  [bool isNegativeIfChecked,
                                   bool hasFatalTypeErrors,
-                                  bool hasRuntimeErrors]),
+                                  bool hasRuntimeErrors,
+                                  String multitestOutcome]),
                  Function multitestDone) {
   // Each new test is a single String value in the Map tests.
   Map<String, String> tests = new Map<String, String>();
@@ -158,7 +159,8 @@ void DoMultitest(String filename,
            isNegative,
            isNegativeIfChecked,
            enableFatalTypeErrors,
-           hasRuntimeErrors);
+           hasRuntimeErrors,
+           outcome);
   }
   multitestDone();
 }