[clang] [lldb] [clang] implement CWG1980 and CWG2064: instantiation-dependency improvements (PR #190495)

[Corentin Jabot via cfe-commits]

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@@ -1,8 +1,9 @@
-// RUN: %clang_cc1 -std=c++23 -verify %s
+// RUN: %clang_cc1 -std=c++26 -verify %s
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cor3ntin wrote:

Can we add a run line rather than changing it?

https://github.com/llvm/llvm-project/pull/190495