Remove underscores from configurations.

dart/tools/testing/dart/test_suite.dart

Index: dart/tools/testing/dart/test_suite.dart
diff --git a/dart/tools/testing/dart/test_suite.dart b/dart/tools/testing/dart/test_suite.dart
index 1052f7b4fca61599a782e8abc5bb73d7bed0d9f0..ed831c7d24a27e9c4e2acbc345e93dfcb68530d6 100644
--- a/dart/tools/testing/dart/test_suite.dart
+++ b/dart/tools/testing/dart/test_suite.dart
@@ -1275,9 +1275,9 @@ class TestUtils {
   }
 
   static String buildDir(Map configuration) {
-    String debugMode =
-        (configuration['mode'] == 'debug') ? 'Debug_' : 'Release_';
-    return "${outputDir(configuration)}$debugMode${configuration['arch']}";
+    String mode = (configuration['mode'] == 'debug') ? 'Debug' : 'Release';
+    String arch = configuration['arch'].toUpperCase();

[siva, 2012/06/01 20:19:21]

var mode = ...;
var arch = ...;

to conform to the style guide. 

[ahe, 2012/06/04 07:42:09]

I don't think the style guide prohibits you from using types. If it does, it
would be wrong.

In this case, types were being used already, so I think it makes sense to keep
them.

+    return "${outputDir(configuration)}$mode$arch";
  }
 
   static String dartDir() {