Fixes in codegen and test script

test/test.sh

Index: test/test.sh
diff --git a/test/test.sh b/test/test.sh
index c96a72ec69e30cabf6c4ada27fa1105c1cad33ca..e2534cf5f15671f950b185276f7b7106b022d9f2 100755
--- a/test/test.sh
+++ b/test/test.sh
@@ -26,7 +26,9 @@ function show_diff {
     sed -e "s/^\(-.*\)/\1/"
   echo
   echo "You can update these expectations with:"
-  echo "$ pushd `pwd` && cp -a actual/* expect && popd"
+  local expect="test/codegen/expect"
+  echo "$ cp -a test/codegen/actual/* $expect && "\
+    "rm -r $expect/dev_compiler/ $expect/server_mode/dev_compiler/"

[Jennifer Messerly, 2015/03/11 20:28:55]

aww. Is there a way to exclude these from what we generate? Or have the test
clean up after itself?

(I usually just write the copy command, not copy paste it)

[Siggi Cherem (dart-lang), 2015/03/11 23:27:22]

yeah, good point. I just realized, we could add these two folders to the
.gitignore, so we can continue using the simple copy command and not worry about
it. WDYT?

[Jennifer Messerly, 2015/03/11 23:48:00]

As long as they're excluded from the `diff` command, it sounds good to me.
(I presume we want to check in everything expected, so running tests on clean
checkout shows PASS)

   fail
 }