================
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 %s -verify -std=c++20
+
+namespace std {
+
+template<class T, class = T::x> // expected-error 2 {{type 'int' cannot be
used prior to '::' because it has no members}}
+class initializer_list;
+
+}
+
+auto x = {1}; // expected-note {{in instantiation of default argument for
'initializer_list<int>' required here}}
+
+void f() {
+ for(int x : {1, 2}); // expected-note {{in instantiation of default
argument for 'initializer_list<int>' required here}}
+}
----------------
zyn0217 wrote:
We usually wrap the test with a namespace of its corresponding GH number.
https://github.com/llvm/llvm-project/pull/132284
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