fIsError= isError;
fIsError= JavaMarkerAnnotation.ERROR_ANNOTATION_TYPE.equals(annotation.getType());  String markerType= annotation.getMarkerType(); fMarkerType= markerType != null ? markerType : IJavaModelMarker.JAVA_MODEL_PROBLEM_MARKER;
	public ProblemLocation(int offset, int length, int id, String[] arguments, boolean isError) {		fId= id;		fArguments= arguments;		fOffset= offset;		fLength= length;		fIsError= isError;	}