--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/diagnostic/out-of-class-redeclaration.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,13 @@
+// Adapted from g++.old-deja/g++.law/arm8.C
+
+struct K {
+  void f(int);
+};
+
+void K::f(int);  // { dg-error "6:declaration of .void K::f\\(int\\). outside of class" }
+
+struct L {
+  void g(int) {}
+};
+
+void L::g(int);  // { dg-error "6:declaration of .void L::g\\(int\\). outside of class" }