Add the 3.3.3 sources for class-dump.

class-dump/src/CDSymbol.h

+// -*- mode: ObjC -*-
+
+//  This file is part of class-dump, a utility for examining the Objective-C segment of Mach-O files.
+//  Copyright (C) 1997-1998, 2000-2001, 2004-2010 Steve Nygard.
+
+#import <Foundation/Foundation.h>
+
+#include <mach-o/nlist.h>
+
+extern NSString *const ObjCClassSymbolPrefix;
+
+@class CDMachOFile;
+
+@interface CDSymbol : NSObject
+{
+    struct nlist_64 nlist;
+    BOOL is32Bit;
+    NSString *name;
+    CDMachOFile *nonretained_machOFile;
+}
+
+- (id)initWithName:(NSString *)aName machOFile:(CDMachOFile *)aMachOFile nlist32:(struct nlist)nlist32;
+- (id)initWithName:(NSString *)aName machOFile:(CDMachOFile *)aMachOFile nlist64:(struct nlist_64)nlist64;
+- (void)dealloc;
+
+- (uint64_t)value;
+- (NSString *)name;
+
+- (BOOL)isExternal;
+
+- (NSComparisonResult)compare:(CDSymbol *)aSymbol;
+- (NSComparisonResult)nameCompare:(CDSymbol *)aSymbol;
+
+- (NSString *)description;
+
+@end