Start cleaning up the HTML tests.

pkg/dev_compiler/tool/build_test_pkgs.sh

 #!/bin/bash
 set -e # bail on error
 
 cd $( dirname "${BASH_SOURCE[0]}" )/..
 
 mkdir -p gen/codegen_output/pkg/
 
 SDK=--dart-sdk-summary=lib/js/amd/dart_sdk.sum
 
 ./bin/dartdevc.dart $SDK -o gen/codegen_output/pkg/expect.js \
     --url-mapping=package:expect/expect.dart,test/codegen/expect.dart \

[vsm, 2016/10/12 22:29:46]

Do we still need this url-mapping?  I think we might just pick up the 'real'
package now - if so, you can also delete our local copy.

[Bob Nystrom, 2016/10/13 00:12:12]

Ah, nice. Done.

     package:expect/expect.dart
 
 ./bin/dartdevc.dart $SDK -o gen/codegen_output/pkg/async_helper.js \
     --url-mapping=package:async_helper/async_helper.dart,test/codegen/async_helper.dart \

[vsm, 2016/10/12 22:29:46]

This too actually.

[Bob Nystrom, 2016/10/13 00:12:12]

It looks like dev_compiler's version of async_helper is a little different from
the pkg/async_helper one. The latter is doing something with a ReceivePort. If
it's OK with you, I'll put off unforking them for now.

     package:async_helper/async_helper.dart
 
+./bin/dartdevc.dart $SDK -o gen/codegen_output/pkg/minitest.js \
+    --url-mapping=package:minitest/minitest.dart,test/codegen/minitest.dart \
+    package:minitest/minitest.dart
+
 ./bin/dartdevc.dart $SDK -o gen/codegen_output/pkg/js.js \
     package:js/js.dart
 
 ./bin/dartdevc.dart $SDK -o gen/codegen_output/pkg/matcher.js \
     package:matcher/matcher.dart
 
 ./bin/dartdevc.dart $SDK -o gen/codegen_output/pkg/path.js \
     package:path/path.dart
 
 ./bin/dartdevc.dart $SDK -o gen/codegen_output/pkg/stack_trace.js \
     -s gen/codegen_output/pkg/path.sum \
     package:stack_trace/stack_trace.dart
 
 ./bin/dartdevc.dart $SDK --unsafe-force-compile \
     -o gen/codegen_output/pkg/unittest.js \
     -s gen/codegen_output/pkg/matcher.sum \
     -s gen/codegen_output/pkg/path.sum \
     -s gen/codegen_output/pkg/stack_trace.sum \
     package:unittest/unittest.dart \
     package:unittest/html_config.dart \
     package:unittest/html_individual_config.dart \
     package:unittest/html_enhanced_config.dart