Strip more unused features.

gulpfile.js

 require('source-map-support').install();
 
 var clangFormat = require('clang-format');
 var formatter = require('gulp-clang-format');
 var fs = require('fs');
 var fsx = require('fs-extra');
 var gulp = require('gulp');
 var gutil = require('gulp-util');
 var merge = require('merge2');
 var mocha = require('gulp-mocha');
@@ skipping 63 matching lines @@
       .pipe(gulp.dest('build/'));  // '/test/' comes from base above.
 });
 
 gulp.task('test.unit', ['test.compile'], function(done) {
   if (hasError) {
     done();
     return;
   }
   return gulp.src('build/test/**/*.js').pipe(mocha({
     timeout: 4000,  // Needed by the type-based tests :-(
+    fullTrace: true,
   }));
 });
 
 // This test transpiles some unittests to dart and runs them in the Dart VM.
 gulp.task('test.e2e', ['test.compile'], function(done) {
   var testfile = 'helloworld';
 
   // Removes backslashes from __dirname in Windows
   var dir = (__dirname.replace(/\\/g, '/') + '/build/e2e');
   if (fs.existsSync(dir)) fsx.removeSync(dir);
   fs.mkdirSync(dir);
   fsx.copySync(__dirname + '/test/e2e', dir);
   fsx.copySync(__dirname + '/typings', dir + '/typings');
 
   // run node with a shell so we can wildcard all the .ts files
   var cmd = 'node ../lib/main.js --translateBuiltins --basePath=. --destination=. ' +
       '--typingsRoot=typings/ ' +
-      '*.ts angular2/src/facade/lang.d.ts typings/es6-promise/es6-promise.d.ts';
+      '*.ts typings/es6-promise/es6-promise.d.ts';
   // Paths must be relative to our source root, so run with cwd == dir.
   spawn('sh', ['-c', cmd], {stdio: 'inherit', cwd: dir}).on('close', function(code, signal) {
     if (code > 0) {
       onError(new Error('Failed to transpile ' + testfile + '.ts'));
     } else {
       try {
         var opts = {stdio: 'inherit', cwd: dir};
         // Install the unittest packages on every run, using the content of pubspec.yaml
         // TODO: maybe this could be memoized or served locally?
         spawn(which.sync('pub'), ['install'], opts).on('close', function() {
@@ skipping 10 matching lines @@
 
 gulp.task('test', ['test.check-format', 'test.check-lint', 'test.unit', 'test.e2e']);
 
 gulp.task('watch', ['test.unit'], function() {
   failOnError = false;
   // Avoid watching generated .d.ts in the build (aka output) directory.
   return gulp.watch(['lib/**/*.ts', 'test/**/*.ts'], {ignoreInitial: true}, ['test.unit']);
 });
 
 gulp.task('default', ['compile']);