NPE when calling zone.getLongStackTrace();

[mhevery]

When calling zone.getLongStackTrace() from console (during debug). The method throws an NPE because exception is not specified. It would be useful to make the exception optional so that it would be easy to query the current location.

The issue is in long-stack-trace-zone.js#L50

A simple check to ignore null exception should suffice.

[btford]

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