Implement modular compilation

karma.conf.js

 // Karma configuration
 // Generated on Mon Apr 20 2015 06:33:20 GMT-0700 (PDT)
 
 module.exports = function(config) {
   var configuration = {
 
     // base path that will be used to resolve all patterns (eg. files, exclude)
     basePath: '',
 
     // frameworks to use
     // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
     frameworks: ['mocha', 'requirejs', 'chai'],
 
     // list of files / patterns to load in the browser
     files: [
       'lib/runtime/dart_*.js',
       'lib/runtime/dart/*.js',
       // {pattern: 'test/browser/*.js', included: false}
       'test/codegen/expect/async_helper/async_helper.js',
       'test/codegen/expect/dom/dom.js',
       'test/codegen/expect/expect/expect.js',
       'test/codegen/expect/matcher/matcher.js',
-      'test/codegen/expect/matcher/src/*.js',
       'test/codegen/expect/unittest/unittest.js',
       'test/codegen/expect/syncstar_syntax.js',
       'test/codegen/expect/language-all.js',
       'test/codegen/expect/language/sub/sub.js',
       'test/codegen/expect/language/*.lib',
       'test/codegen/expect/lib-typed_data-all.js',
       'test/browser/*.js',
       'test-main.js',
     ],
 
@@ skipping 41 matching lines @@
         base: 'Chrome',
         flags: [ '--no-sandbox' ]
       },
 
       chrome_canary_travis: {
         base: 'ChromeCanary',
         flags: [ '--no-sandbox' ]
       },
     },
 
-    browsers: ['ChromeCanary', 'Electron'],
+    browsers: ['Chrome', 'Electron'],

[vsm, 2016/04/14 00:18:24]

This should work now with the patch I suggested.  Note that travis on line 92 is
still using canary.

[Jennifer Messerly, 2016/04/14 18:28:40]

Ah yeah, I'll try that.

Not related to this review, but: At some point should Chrome be the default for
use with DDC? It might be more reliable for Dart developers than Canary. That
said, maybe we'll always want the bleeding edge V8 goodness on Canary. Certainly
so far it's been useful to test against it. (And we have Electron anyway keeping
us honest on the older Chrome support.)

 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
     singleRun: false,
   };
 
   if (process.env.TRAVIS) {
     configuration.browsers = ['chrome_canary_travis', 'Electron'];
     configuration.autoWatch = false;
     // Enable this for more logging on Travis.  It is too much for Travis to
     // automatically display, but still results in a downloadable raw log.
     // configuration.logLevel = config.LOG_DEBUG;
     configuration.client.captureConsole = true;
   }
 
   config.set(configuration);
 };