NG Upgrade silently fails to bootstrap hybrid application

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[x] bug report => search github for a similar issue or PR before submitting
[ ] feature request
[ ] support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question

Current behavior The upgrade adapter silently fails to bootstrap a hybrid application in the following cases:

• Invalid dependency in angular2 components . See reproduction plunk bellow
• Template errors in angular 2 component. See reproduction plunk bellow

Expected behavior Errors should be reported by the upgrade adapter

Minimal reproduction of the problem with instructions

• This first plunk illustrates the scenario with an invalid dependency being requested by a component:

  https://plnkr.co/edit/am6Ggf61dVG7WLvT7aa3?p=preview

  Open the browser’s developer tools when you open the plunk and you should see just a message

   bootstrapping ...

To fix the bootstrapping issue, comment lines 21 and 22 in src/app.ts

   // COMMENT ME TO FIX BOOTSTRAPPING ISSUE
  constructor(foo:bar){
  }

• This second plunk illustrates the scenario with an invalid template being used in an angular 2 component:

  https://plnkr.co/edit/pomPcakWVjWLfjVw8qSq?p=preview

  Open the browser’s developer tools when you open the plunk and you should see just a message

   bootstrapping ...

To fix the bootstrapping issue, comment line 14 in src/app.ts

    <!-- COMMENT ME TO FIX BOOTSTRAPPING ERROR -->
      <BAD TEMPLATE div></div>

What is the motivation / use case for changing the behavior?

Improve development experience

Please tell us about your environment:

• Angular version: 2.0.1

• Browser: all

• Language: TypeScript 2.0.3

• Node (for AoT issues): node --version = N/A

[btrigueiro]

+1

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