Create separate HTML pages for each type.

utils/dartdoc/dartdoc

Index: utils/dartdoc/dartdoc
diff --git a/utils/dartdoc/dartdoc b/utils/dartdoc/dartdoc
index ce945f0b2db2aa60b970928bc05be6bf5511750a..01208161b008a51990ae6391b27414bc5e97acda 100755
--- a/utils/dartdoc/dartdoc
+++ b/utils/dartdoc/dartdoc
@@ -1,12 +1,14 @@
 #!/bin/bash
 
 # To generate docs for a library, run this script with the path to an entrypoint
-# .dart file as the only argument, like:
+# .dart file, like:
 #
 # $ dartdoc foo.dart
 
+# Get the .dart lib file the user wants to generate docs for.
+entrypoint=$PWD/$1
+
 # Run from dartdoc directory to get correct relative paths.
-startdir=$PWD
 pushd `dirname "$0"` >>/dev/null
 
 # Generate the client-side .js file from interact.dart if we haven't already or
@@ -18,7 +20,10 @@ if [ "interact.dart" -nt "static/interact.js" ]
   echo "Compiled interact.dart."
 fi
 
+# Ditch the first arg so we can pass any extra arguments to dartdoc.
+shift
+
 # Generate the user's docs.
-../../frog/frogsh --libdir=../../frog/lib dartdoc.dart "$startdir/$1"
+../../frog/frogsh --libdir=../../frog/lib dartdoc.dart "$entrypoint" $@
 
 popd >>/dev/null