[clang][NFC] Move CWG273 test into its own file

Author: Endilll

clang/test/CXX/drs/cwg273.cpp

@@ -0,0 +1,24 @@
+// RUN: %clang_cc1 -std=c++98 %s -verify=expected -fexceptions -fcxx-exceptions -pedantic-errors
+// RUN: %clang_cc1 -std=c++11 %s -verify=expected -fexceptions -fcxx-exceptions -pedantic-errors
+// RUN: %clang_cc1 -std=c++14 %s -verify=expected -fexceptions -fcxx-exceptions -pedantic-errors
+// RUN: %clang_cc1 -std=c++17 %s -verify=expected -fexceptions -fcxx-exceptions -pedantic-errors
+// RUN: %clang_cc1 -std=c++20 %s -verify=expected -fexceptions -fcxx-exceptions -pedantic-errors
+// RUN: %clang_cc1 -std=c++23 %s -verify=expected -fexceptions -fcxx-exceptions -pedantic-errors
+// RUN: %clang_cc1 -std=c++2c %s -verify=expected -fexceptions -fcxx-exceptions -pedantic-errors
+
+// expected-no-diagnostics
+
+#include <stdarg.h>
+#include <stddef.h>
+namespace cwg273 { // cwg273: yes
+  struct A {
+    int n;
+  };
+  void operator&(A);
+  void f(A a, ...) {
+    offsetof(A, n);
+    va_list val;
+    va_start(val, a);
+    va_end(val);
+  }
+} // namespace cwg273

clang/test/CXX/drs/cwg2xx.cpp

@@ -950,21 +950,7 @@ namespace cwg272 { // cwg272: yes
   };
 } // namespace cwg272
 
-#include <stdarg.h>
-#include <stddef.h>
-namespace cwg273 { // cwg273: yes
-  struct A {
-    int n;
-  };
-  void operator&(A);
-  void f(A a, ...) {
-    offsetof(A, n);
-    va_list val;
-    va_start(val, a);
-    va_end(val);
-  }
-} // namespace cwg273
-
+// cwg273 is in cwg273.cpp
 // cwg274: na
 
 namespace cwg275 { // cwg275: no