test rename overhaul: step 10 - crypto tests, and add back other tests commited

tests/lib/crypto/sha256_test.dart

Index: tests/lib/crypto/sha256_test.dart
diff --git a/tests/lib/src/crypto/sha256Test.dart b/tests/lib/crypto/sha256_test.dart
similarity index 99%
rename from tests/lib/src/crypto/sha256Test.dart
rename to tests/lib/crypto/sha256_test.dart
index 908ac5bb149767273ba857220fe6487285154003..5e7ec1e601f13244cc91e0c11db8b8c26c21224a 100644
--- a/tests/lib/src/crypto/sha256Test.dart
+++ b/tests/lib/crypto/sha256_test.dart
@@ -4,7 +4,7 @@
 
 #library('sha256Test');
 // TODO(ager): Replace with "dart:crypto" when ready.
-#import("../../../../lib/crypto/crypto.dart");
+#import("../../../lib/crypto/crypto.dart");
 
 #source('sha256_long_test_vectors.dart');
 #source('sha256_short_test_vectors.dart');