Bug 127289 [Markers] SystemFilter and group selection state not preserved
We are not preserving the selection state of the system filters or which group is selected.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/ProblemView.java
return new ProblemFilter(name);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.MarkerView#getSectionTag()
	 */
	protected String getSectionTag() {
		return TAG_DIALOG_SECTION;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.MarkerView#getMarkerEnablementPreferenceName()
	 */
	String getMarkerEnablementPreferenceName() {
		return IDEInternalPreferences.LIMIT_PROBLEMS;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.MarkerView#getMarkerLimitPreferenceName()
	 */
	String getMarkerLimitPreferenceName() {
		return IDEInternalPreferences.PROBLEMS_LIMIT;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.markers.internal.MarkerView#getFiltersPreferenceName()