[clang] [clang] Fix clang++ crash on assertions when compiling source (PR #70594)

[Shafik Yaghmour via cfe-commits]

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@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
+// RUN: %clang_cc1 -fsyntax-only -std=c++23 %s -verify
+
+// expected-no-diagnostics
+
+struct A {};
+using CA = const A;
+
+struct S1 : CA {
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shafik wrote:

These examples: https://godbolt.org/z/8T3643496 don't crash clang and so don't really test the original bug. Please add the example from the bug report that does crash: https://godbolt.org/z/4naMG1q6r so we have a proper regression test.

https://github.com/llvm/llvm-project/pull/70594