StackTraceNJ constructor
You can suppress call frames from showing
by specifing a non-zero value for skipFrames
If the workingDirectory is provided we will output
a full file path to the dart library.
Implementation
StackTraceNJ({int skipFrames = 0, this.workingDirectory})
: stackTrace = core.StackTrace.current,
_skipFrames = skipFrames + 1;