Sigh, actually add the test

Author: ojhunt

clang/test/SemaCXX/type-aware-new-delete-transparent-contexts.cpp

@@ -0,0 +1,43 @@
+// RUN: %clang_cc1  -fsyntax-only -verify %s -std=c++26 -fexceptions -DTRANSPARENT_DECL=0
+// RUN: %clang_cc1  -fsyntax-only -verify %s -std=c++26 -fexceptions -DTRANSPARENT_DECL=1
+// RUN: %clang_cc1  -fsyntax-only -verify %s -std=c++26 -fexceptions -DTRANSPARENT_DECL=2
+
+// expected-no-diagnostics
+#if TRANSPARENT_DECL==2
+export module Testing;
+#endif
+
+namespace std {
+  template <class T> struct type_identity {};
+  using size_t = __SIZE_TYPE__;
+  enum class align_val_t : size_t {};
+  struct destroying_delete_t { explicit destroying_delete_t() = default; };
+}
+
+#if TRANSPARENT_DECL==0
+#define BEGIN_TRANSPARENT_DECL extern "C" {
+#define END_TRANSPARENT_DECL }
+#elif TRANSPARENT_DECL==1
+#define BEGIN_TRANSPARENT_DECL extern "C++" {
+#define END_TRANSPARENT_DECL }
+#elif TRANSPARENT_DECL==2
+#define BEGIN_TRANSPARENT_DECL export {
+#define END_TRANSPARENT_DECL }
+#else
+#error unexpected decl kind
+#endif
+
+BEGIN_TRANSPARENT_DECL
+  void *operator new(std::type_identity<int>, std::size_t, std::align_val_t);
+  void operator delete[](std::type_identity<int>, void*, std::size_t, std::align_val_t);
+END_TRANSPARENT_DECL
+
+void *operator new[](std::type_identity<int>, std::size_t, std::align_val_t);
+void operator delete(std::type_identity<int>, void*, std::size_t, std::align_val_t);
+
+void foo() {
+  int *iptr = new int;
+  delete iptr;
+  int *iarray = new int[5];
+  delete [] iarray;
+}