Add a couple of test files missed in r281258.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@281259 91177308-0d34-0410-b5e6-96231b3b80d8

test/Modules/Inputs/merge-template-pattern-visibility/c.h

+namespace CrossModuleMerge {
+  template<typename, typename = int> struct A;
+  template<typename T> struct B;
+
+  template<typename, typename> struct A {};
+  template<typename T> struct B : A<T> {};
+  template<typename T> inline auto C(T) {}
+}
+

test/Modules/Inputs/merge-template-pattern-visibility/d.h

+// d.h: empty