Index: lib/Frontend/InterfaceStubFunctionsConsumer.cpp
===================================================================
--- lib/Frontend/InterfaceStubFunctionsConsumer.cpp
+++ lib/Frontend/InterfaceStubFunctionsConsumer.cpp
@@ -177,6 +177,10 @@
       HandleTemplateSpecializations(*cast<FunctionTemplateDecl>(ND), Symbols,
                                     RDO);
       return true;
+    case Decl::Kind::Record:
+    case Decl::Kind::Typedef:
+    case Decl::Kind::Enum:
+    case Decl::Kind::EnumConstant:
     case Decl::Kind::TemplateTypeParm:
       return true;
     case Decl::Kind::Var:
Index: test/InterfaceStubs/noninstancetypes.c
===================================================================
--- test/InterfaceStubs/noninstancetypes.c
+++ test/InterfaceStubs/noninstancetypes.c
@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -o - -emit-interface-stubs %s | FileCheck %s
+// TODO: Change clang_cc1 to clang when llvm-ifs can accept empty symbol lists.
+
+// CHECK:      Symbols:
+// CHECK-NEXT: ...
+
+struct a;
+enum { b };
+typedef int c;
+