Fixed a rewrite of metadata bug when category implementation has no matching interface.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44072 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/metadata-test-1.m b/test/Sema/metadata-test-1.m
new file mode 100644
index 0000000..134debf
--- /dev/null
+++ b/test/Sema/metadata-test-1.m
@@ -0,0 +1,12 @@
+// RUN: clang -rewrite-test %s
+
+@interface Intf 
+@end
+
+@implementation Intf(Category)
+- (void) CatMeth {}
+@end
+
+@implementation Another
+- (void) CatMeth {}
+@end