test.py: First step towards support of caching dart2js compilations across runtimes

tools/testing/dart/test_options.dart

Index: tools/testing/dart/test_options.dart
diff --git a/tools/testing/dart/test_options.dart b/tools/testing/dart/test_options.dart
index d241705209385e973428f7ede59696555729bd1a..04f35054142ce3095aee6d2042b61476d72a56b7 100644
--- a/tools/testing/dart/test_options.dart
+++ b/tools/testing/dart/test_options.dart
@@ -39,18 +39,6 @@ class _TestOptionSpecification {
  * Parser of test options.
  */
 class TestOptionsParser {
-  String specialCommandHelp =
-"""
-Special command support. Wraps the command line in
-a special command. The special command should contain
-an '@' character which will be replaced by the normal
-command executable.
-
-For example if the normal command line that will be executed
-is 'dart file.dart' and you specify special command
-'python -u valgrind.py @ suffix' the final command will be
-'python -u valgrind.py dart suffix file.dart'""";
-
   /**
    * Creates a test options parser initialized with the known options.
    */
@@ -228,19 +216,6 @@ is 'dart file.dart' and you specify special command
               false,
               'bool'),
           new _TestOptionSpecification(
-              'valgrind',
-              'Run tests through valgrind',
-              ['--valgrind'],
-              [],
-              false,
-              'bool'),
-          new _TestOptionSpecification(
-              'special-command',
-              specialCommandHelp,
-              ['--special-command'],
-              [],
-              ''),
-          new _TestOptionSpecification(
               'time',
               'Print timing information after running tests',
               ['--time'],
@@ -580,16 +555,6 @@ Note: currently only implemented for dart2js.''',
     if (configuration['mode'] == 'all') {
       configuration['mode'] = 'debug,release';
     }
-    if (configuration['valgrind']) {
-      // TODO(ager): Get rid of this when there is only one checkout and
-      // we don't have to special case for the runtime checkout.
-      File valgrindFile = new File('runtime/tools/valgrind.py');
-      if (!valgrindFile.existsSync()) {
-        valgrindFile = new File('../runtime/tools/valgrind.py');
-      }
-      String valgrind = valgrindFile.fullPathSync();
-      configuration['special-command'] = 'python -u $valgrind @';
-    }
 
     // Use verbose progress indication for verbose output unless buildbot
     // progress indication is requested.