Restructure pkg/unittest and pkg/webdriver to follow the pub conventions.

pkg/intl/test/date_time_format_test_data.dart

Index: pkg/intl/test/date_time_format_test_data.dart
===================================================================
--- pkg/intl/test/date_time_format_test_data.dart	(revision 14313)
+++ pkg/intl/test/date_time_format_test_data.dart	(working copy)
@@ -11,7 +11,7 @@
 // TODO(alanknight): Test more locales and a wider variety of test data,
 // possibly by generating test data out of ICU.
 
-#library('date_time_format_test_data');
+library date_time_format_test_data;
 
 var English = const {
   "DAY" : "27",
@@ -334,4 +334,4 @@
       "Παρ, 27 Ιαν 2012 8:58:59 μ.μ. GMT-08:00",
   "HOUR_MINUTE_SECOND + ABBR_GENERIC_TZ" :
       "8:58:59 μ.μ. Ηνωμένες Πολιτείες της Αμερικής (Λος Άντζελες)",
-  "HOUR_MINUTE + ABBR_SPECIFIC_TZ" : "8:58 μ.μ. GMT-08:00"};
+  "HOUR_MINUTE + ABBR_SPECIFIC_TZ" : "8:58 μ.μ. GMT-08:00"};