Add support for collecting current stack trace information in browsers
(e.g. IE10+, PhantomJS) that do not automatically store the current stack trace
information in a newly created `Error` object's `stack` property, but
only add it there once the `Error` gets thrown.
The original implementation works fine in Firefox & Chrome, but fails on IE10+
and PhantomJS where it, for example, breaks Karma's error reporting in cases
when an exception is thrown in a test like the following:
```
it('the holy crusade', inject(function() {
var x = {};
x.holyGrail();
}));
```
In this case, the ngMock `inject()` implementation would incorrectly add the
word `undefined` at the end of the collected error stack trace information,
thus causing the main error description to be reported back to Karma as
`undefined`.
The added test makes sure this functionality:
- works as expected in browsers supporting JavaScript stack trace
collection, e.g. Chrome, Firefox, IE10+, Opera & PhantomJS
- does not add any bogus stack track information in browsers that do
not support JavaScript stack trace collection, e.g. IE9
Fixes#13591Closes#13592Closes#13593
Jurko Gospodnetić
56dae6fa1b