- Reorder the priority of flags in the test harness when passed to the VM:

tools/testing/dart/test_suite.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 950 matching lines @@
 
   void enqueueStandardTest(List<Command> baseCommands,
                            TestInformation info,
                            String testName,
                            Set<Expectation> expectations) {
     var commonArguments = commonArgumentsFromFile(info.filePath,
                                                   info.optionsFromFile);
 
     List<List<String>> vmOptionsList = getVmOptions(info.optionsFromFile);
     assert(!vmOptionsList.isEmpty);
+    List stdOptions = TestUtils.standardOptions(configuration);
 
     for (var vmOptions in vmOptionsList) {
-      var allVmOptions = vmOptions;
-      if (!extraVmOptions.isEmpty) {
-        allVmOptions = new List.from(vmOptions)..addAll(extraVmOptions);
-      }
+      var allVmOptions = new List()
+          // Get the standard options for this run of the testsuite.
+          ..addAll(stdOptions)
+          // Add the current VMOptions line from the file.
+          ..addAll(vmOptions)
+          // Finally add the extra VM options.
+          ..addAll(extraVmOptions);
 
-      var commands = []..addAll(baseCommands);
-      commands.addAll(makeCommands(info, allVmOptions, commonArguments));
+      var commands = new List()
+          ..addAll(baseCommands)
+          ..addAll(makeCommands(info, allVmOptions, commonArguments));
       enqueueNewTestCase(
           new TestCase('$suiteName/$testName',
                        commands,
                        configuration,
                        expectations,
                        isNegative: isNegative(info),
                        info: info));
     }
   }
 
@@ skipping 538 matching lines @@
     }
     if (Platform.operatingSystem == 'macos') {
       final path = dartDir.append(
           '/client/tests/drt/Content Shell.app/Contents/MacOS/Content Shell');
       return path.toNativePath();
     }
     return dartDir.append('client/tests/drt/content_shell').toNativePath();
   }
 
   List<String> commonArgumentsFromFile(Path filePath, Map optionsFromFile) {
-    List args = TestUtils.standardOptions(configuration);
+    List args = [];

[ricow1, 2015/09/04 06:14:42]

this will not work, you now eat all of the compiler flags that we get from
TestUtils.standardOptions these are now passed as vmoptions!

 
     String packageRoot = packageRootArgument(optionsFromFile['packageRoot']);
     if (packageRoot != null) {
       args.add(packageRoot);
     }
     String packages = packagesArgument(optionsFromFile['packages']);
     if (packages != null) {
       args.add(packages);
     }
     args.addAll(additionalOptions(filePath));
@@ skipping 875 matching lines @@
       for (var key in PATH_REPLACEMENTS.keys) {
         if (path.startsWith(key)) {
           path = path.replaceFirst(key, PATH_REPLACEMENTS[key]);
           break;
         }
       }
     }
     return path;
   }
 }