--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/SemaObjC/interface-scope-2.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,129 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -triple i686-apple-darwin9 -Wno-objc-root-class %s
+// expected-no-diagnostics
+// FIXME: must also compile as Objective-C++ 
+
+// <rdar://problem/6487662>
+typedef struct objc_selector *SEL;
+typedef signed char BOOL;
+typedef unsigned int NSUInteger;
+typedef struct _NSZone NSZone;
+@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
+@protocol NSObject
+- (BOOL)isEqual:(id)object;
+- (BOOL)respondsToSelector:(SEL)aSelector;
+@end
+@protocol NSCopying
+- (id)copyWithZone:(NSZone *)zone;
+@end
+@protocol NSMutableCopying
+- (id)mutableCopyWithZone:(NSZone *)zone;
+@end
+@protocol NSCoding
+- (void)encodeWithCoder:(NSCoder *)aCoder;
+@end
+@interface NSObject <NSObject> {}
+@end
+@class NSString, NSData;
+typedef struct _NSPoint {}
+NSRange;
+@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding>
+- (NSUInteger)length;
+@end
+@interface NSMutableString : NSString
+- (void)replaceCharactersInRange:(NSRange)range withString:(NSString *)aString;
+@end
+@class NSArray, NSDictionary, NSMapTable;
+@interface NSResponder : NSObject <NSCoding> {}
+@end
+@protocol NSAnimatablePropertyContainer
+- (id)animator;
+@end
+extern NSString *NSAnimationTriggerOrderIn ;
+@interface NSView : NSResponder  <NSAnimatablePropertyContainer>  {
+  struct __VFlags2 {} _vFlags2;
+}
+@end
+@class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView;
+@interface FooiagramView : NSView {
+id _delegate;
+}
+@end
+@class FooiagramView;
+@interface _FooiagramViewReserved : NSObject {
+@public
+  NSMutableString *_typeToSelectString;
+  struct _FooiagramViewFlags {
+      unsigned int delegateRespondsToPrintInfoForBarView : 1;
+  } _dvFlags;
+}
+@end
+extern _FooiagramViewReserved *_FooiagramViewBarViewReserved(FooiagramView *BarView);
+@interface FooiagramView (FooiagramViewPrivate)
++ (Class)_defaultBarToolManagerClass;
+@end
+@implementation FooiagramView
+static NSMapTable *_defaultMenuForClass = 0;
+- (void)setDelegate:(id)delegate {
+  if (_delegate != delegate) {
+    struct _FooiagramViewFlags *dvFlags =
+      &_FooiagramViewBarViewReserved(self)->_dvFlags;
+    if (_delegate != ((void *)0)) {
+      dvFlags->delegateRespondsToPrintInfoForBarView = [_delegate respondsToSelector:@selector(printInfoForBarView:)];
+    }
+  }
+}
+@end
+
+// <rdar://problem/6487684>
+@interface WizKing_MIKeep {
+struct __LoreStuffNode *_historyStuff;
+}
+@end
+typedef struct __LoreStuffNode {} LoreStuffNode;
+@implementation WizKing_MIKeep
+- init {
+  LoreStuffNode *node;
+  node = &(_historyStuff[1]);
+  return 0;
+}
+@end
+
+// <rdar://problem/6487702>
+typedef long unsigned int __darwin_size_t;
+typedef __darwin_size_t size_t;
+void *memset(void *, int, size_t);
+@class NSString, NSURL, NSError;
+@interface OingoWerdnaPeon : NSObject {}
+@end        typedef enum {
+OingoPT_SmashOK,     OingoPT_NoSuchFile, }
+OingoWerdnaPeonIOMethod;
+@interface OingoWerdnaPeonSmashDrivel : NSObject <NSCopying> {}
+@end
+@interface OingoBoingoContraptionPeon : OingoWerdnaPeon {
+struct _OingoBoingoContraptionPeonFlags {}
+_nfttFlags;
+}
+@end
+@implementation OingoBoingoContraptionPeon
++ (void)initialize {}
+- (id)initWithSmashDrivel:(OingoWerdnaPeonSmashDrivel *)info {
+  if (self != ((void *)0)) {
+    (void)memset(&_nfttFlags, 0, sizeof(struct _OingoBoingoContraptionPeonFlags));
+  }
+  return 0;
+}
+@end
+
+@interface Blah {
+  struct X {
+    int x;
+  } value;
+}
+@end
+
+@implementation Blah
+- (int)getValue {
+  struct X *xp = &value;
+  return xp->x;
+}
+@end