gcc/testsuite/g++.dg/modules/part-4_c.C - gcc - Git at Google

 // { dg-additional-options "-fmodules-ts -fdump-lang-module" }

 import foo;

 void f ()
 {
   auto f = foo ();

   decltype (f)::inner x;
 }
	// { dg-additional-options "-fmodules-ts -fdump-lang-module" }

	import foo;

	void f ()
	{
	auto f = foo ();

	decltype (f)::inner x;
	}