[clang] fix(80474): Clang crash on improper use of __array_extent (PR #94173)

[via cfe-commits]

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@@ -0,0 +1,5 @@
+// RUN: %clang_cc1 -verify -std=c++11 %s
+
+auto f() { // expected-error {{'auto' return without trailing return type; deduced return types are a C++14 extension}}
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Sirraide wrote:

I’d set the standard version to `C++14` or later to avoid unrelated diagnostics

https://github.com/llvm/llvm-project/pull/94173