arg migrator: change all "assign" of object properties
to "strong" when migrating from GC. // rdar://10532449

llvm-svn: 148607
diff --git a/clang/test/ARCMT/GC.m b/clang/test/ARCMT/GC.m
index d309dab..f241e43 100644
--- a/clang/test/ARCMT/GC.m
+++ b/clang/test/ARCMT/GC.m
@@ -79,3 +79,14 @@
   id x = NSMakeCollectable(cft);
 }
 @end
+
+// rdar://10532449
+@interface rdar10532449
+@property (assign) id assign_prop;
+@property (assign, readonly) id __strong strong_readonly_prop;
+@property (assign) id __weak weak_prop;
+@end
+
+@implementation rdar10532449
+@synthesize assign_prop, strong_readonly_prop, weak_prop;
+@end