Commits on Mar 9, 2020

1. feat(zone.js): add a zone config to allow user disable wrapping uncau… …

   …ght promise rejection
   
   Close angular#27840.
   
   By default, `zone.js` wrap uncaught promise error and wrap it to a new Error object with some
   additional information includes the value of the error and the stack trace.
   
   Consider the following example:
   
   ```
   Zone.current
     .fork({
       name: 'promise-error',
       onHandleError: (delegate: ZoneDelegate, current: Zone, target: Zone, error: any): boolean => {
         console.log('caught an error', error);
         delegate.handleError(target, error);
         return false;
       }
   }).run(() => {
     const originalError = new Error('testError');
     Promise.reject(originalError);
   });
   ```
   
   The `promise-error` zone catches a wrapped `Error` object whose `rejection` property equals
   to the original error, and the message will be `Uncaught (in promise): testError....`,
   You can disable this wrapping behavior by defining a global configuraiton
   `__zone_symbol__DISABLE_WRAPPING_UNCAUGHT_PROMISE_REJECTION = true;` before importing `zone.js`.

   

   JiaLiPassion committed Mar 9, 2020
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