Googletest export

Use C++11 variadic templates for InvokeArgumentAdl in gmock-generated-actions.h.

Make InvokeArgumentAdl use variadic templates to generate its overloads instead
of using pump.py syntax.

PiperOrigin-RevId: 286148805

googlemock/include/gmock/gmock-actions.h

@@ -1222,6 +1222,23 @@ class ActionHelper {
   }
 };
 
+namespace invoke_argument {
+
+// Appears in InvokeArgumentAdl's argument list to help avoid
+// accidental calls to user functions of the same name.
+struct AdlTag {};
+
+// InvokeArgumentAdl - a helper for InvokeArgument.
+// The basic overloads are provided here for generic functors.
+// Overloads for other custom-callables are provided in the
+// internal/custom/gmock-generated-actions.h header.
+
+template <typename R, typename F, typename... Args>
+R InvokeArgumentAdl(AdlTag, F f, Args&&... args) {
+  return f(std::forward<Args>(args)...);
+}
+
+}  // namespace invoke_argument
 }  // namespace internal
 
 }  // namespace testing