NSStateMarker(NSNotApplicableMarker) should implement NSCoding

Originator:stephan.michels
Number:rdar://14311224 Date Originated:29-Jun-2013 07:55 AM
Status:Open Resolved:
Product:OS X SDK Product Version:
Classification:Enhancement Reproducible:Always
 
Summary:
The _NSStateMarker like NSNotApplicableMarker should implement NSCoding, so that they can be used for example
over NSConnections.

Steps to Reproduce:
	SMLog(@"NSNotApplicableMarker=%@(%@)", NSNotApplicableMarker, NSStringFromClass([NSNotApplicableMarker class]));
	NSData *data = [NSKeyedArchiver archivedDataWithRootObject:NSNotApplicableMarker];
	SMLog(@"coded object: %@", [NSKeyedUnarchiver unarchiveObjectWithData:data]);

Expected Results:
I would expect that the state markers can be encoded.

Actual Results:
Actually they can't be encoded:
<SMAppDelegate.m:40> NSNotApplicableMarker=<NOT APPLICABLE MARKER>(_NSStateMarker)
2013-06-29 07:47:05.027 InterfaceInspector[37381:303] -[_NSStateMarker encodeWithCoder:]: unrecognized selector sent to instance 0x100316e80
2013-06-29 07:47:05.031 InterfaceInspector[37381:303] -[_NSStateMarker encodeWithCoder:]: unrecognized selector sent to instance 0x100316e80
2013-06-29 07:47:05.032 InterfaceInspector[37381:303] *** -[NSKeyedArchiver dealloc]: warning: NSKeyedArchiver deallocated without having had -finishEncoding called on it.

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