Initial cut for a development server

test/test.sh

Index: test/test.sh
diff --git a/test/test.sh b/test/test.sh
index 53cca8507e3d940e292c2f0327ba06357d44954a..da7e5f2aa021b2cc168de2fd924c9b44397f2d8f 100755
--- a/test/test.sh
+++ b/test/test.sh
@@ -6,10 +6,15 @@ function fail {
   return 1
 }
 
+# Arguments passed to the diff tool. We exclude runtime JS files that are just
+# copied over from the sources and are not duplicated in the expected folder.
+DIFF_ARGS="-u -r -N --exclude=dart_runtime.js \
+  --exclude=harmony_feature_check.js expect actual"
+
 function show_diff {
   echo "Fail: actual output did not match expected"
   echo
-  diff -u -r -N $1 $2 |\
+  diff $DIFF_ARGS |\
     sed -e "s/^\(+.*\)/\1/" |\
     sed -e "s/^\(-.*\)/\1/"
   echo
@@ -18,7 +23,7 @@ function show_diff {
   fail
 }
 
-# the directory of this script 
+# the directory of this script
 TEST_DIR=$( cd $( dirname "${BASH_SOURCE[0]}" ) && pwd )
 
 # Some tests require being run from the package root
@@ -36,12 +41,12 @@ dart -c test/all_tests.dart || fail
 
 # validate codegen_test output
 pushd test/codegen/ &> /dev/null
-diff -u -r -N expect actual > /dev/null || show_diff expect actual
+diff $DIFF_ARGS > /dev/null || show_diff
 popd &> /dev/null
 
 # validate dart_codegen_test output
 pushd test/dart_codegen/ &> /dev/null
-diff -u -r -N expect actual > /dev/null || show_diff expect actual
+diff $DIFF_ARGS > /dev/null || show_diff
 popd &> /dev/null
 
 # run self host and analyzer after other tests, because they're ~seconds to run.