By popular demand, print the configurations being tested by test.dart at startup.

tools/test-compiler.dart

Index: tools/test-compiler.dart
diff --git a/tools/test-compiler.dart b/tools/test-compiler.dart
index c509005fed28d29e7badcf293f30ece21870344d..56a134faa58fa195223adef9a10b9810eb655ae7 100755
--- a/tools/test-compiler.dart
+++ b/tools/test-compiler.dart
@@ -27,6 +27,14 @@ main() {
   List<Map> configurations = optionsParser.parse(new Options().arguments);
   if (configurations == null) return;
 
+  // Print the configurations being run by this excution of test.dart.
+  StringBuffer sb = new StringBuffer('Test configuration(s):');

[Bill Hesse, 2012/03/13 12:28:24]

'Test configuration${configurations.length > 1 ? "s" : ""}' ?

[Mads Ager (google), 2012/03/13 12:34:47]

Sure, I can do that. :)

+  for (Map conf in configurations) {
+    sb.add(' ${conf["component"]}_${conf["mode"]}_${conf["arch"]}');
+    if (conf['checked']) sb.add('_checked');
+  }
+  print(sb);
+
   // Extract global options from first configuration.
   var firstConf = configurations[0];
   Map<String, RegExp> selectors = firstConf['selectors'];