message: build: add render3 entry-point to legacy test systemjs config
  Until the legacy job has been migrated to Bazel w/ Saucelabs, we
  need to add the `render3` entry-point to the test SystemJS configuration
  so that developers don't get inconsistent behavior between Bazel tests
  and the legacy tests. e.g.
  PR Close
diff: @@ -31,6 +31,7 @@ System.config({
  'rxjs': 'node_modules/rxjs',
  },
  packages: {
  + '@angular/core/src/render3': {main: 'index.js', defaultExtension: 'js'},
  '@angular/core/testing': {main: 'index.js', defaultExtension: 'js'},
  '@angular/core': {main: 'index.js', defaultExtension: 'js'},
  '@angular/animations/browser/testing': {main: 'index.js', defaultExtension: 'js'},
  