1 files changed, 17 insertions, 0 deletions
diff --git a/clang/test/Modules/decldef.mm b/clang/test/Modules/decldef.mm
new file mode 100644
index 00000000000..bbdcd9cb8fa
--- /dev/null
+++ b/clang/test/Modules/decldef.mm
@@ -0,0 +1,17 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -I %S/Inputs -fmodule-cache-path %t %s -verify
+
+__import_module__ decldef;
+A *a1; // expected-error{{unknown type name 'A'}}
+B *b1; // expected-error{{unknown type name 'B'}}
+
+__import_module__ decldef.Decl;
+
+// FIXME: No link between @interface (which we can't see) and @class
+// (which we can).
+// A *a2;
+B *b;
+
+void testB() {
+  B b; // FIXME: Should error, because we can't see the definition.
+}