Terence D. Honles 3943cc2ddb allow spy throwError to throw an Object ...

When using the following code to simulate a node error:

  spyOn(process, 'kill').and.throwError({code: 'ESRCH'})

The object passed in will be converted to a string by the Error
constructor and result in '[object Object]' which is not very useful.
This PR changes the ``throwError`` spy strategy to only convert
strings into an Error object, but any other objects which are passed
in will be thrown as is. This means the spy strategy can never emulate
throwing a bare string ``throw 'error'``, but this would be a backward
incompatible change.

2020-06-25 18:12:00 -07:00

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