Add Path class to dart:io, and add unit tests for it.

tools/test.dart

Index: tools/test.dart
diff --git a/tools/test.dart b/tools/test.dart
index ece8233f6632bb9dd77e416bb6a3abffdf7e9efa..3e7cad096efb5c8c335ef2dd972ce7347bece3de 100755
--- a/tools/test.dart
+++ b/tools/test.dart
@@ -29,10 +29,10 @@
 #import("testing/dart/test_options.dart");
 #import("testing/dart/test_suite.dart");
 
-#import("../compiler/tests/dartc/test_config.dart");
-#import("../runtime/tests/vm/test_config.dart");
-#import("../samples/tests/dartc/test_config.dart");
-#import("../tests/co19/test_config.dart");
+#import("../compiler/tests/dartc/test_config.dart"); // JUnitTestSuite
+#import("../runtime/tests/vm/test_config.dart");  // CCTestSuite
+#import("../samples/tests/dartc/test_config.dart");  // DartcCompilationTestS..

[Mads Ager (google), 2012/05/29 07:36:02]

?

Move the comments to the lines above the imports so you don't have issues with
line length.

Also, these changes seem unrelated to this change so maybe just revert this
file?

[Bill Hesse, 2012/05/31 15:55:10]

Removed from this commit.

On 2012/05/29 07:36:02, Mads Ager wrote:

[Bill Hesse, 2012/05/31 15:55:10]

File reverted

+#import("../tests/co19/test_config.dart");  // StandardTestSuite
 
 /**
  * The directories that contain test suites which follow the conventions