[clang] [Clang][Sema] Fix crash with const qualified member operator new (PR #80327)

[Mariya Podchishchaeva via cfe-commits]

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@@ -37,3 +37,10 @@ void instantiateArrayDecay() {
   int a[1];
   arrayDecay(a);
 }
+
+namespace GH79748 {
+typedef decltype(sizeof(0)) size_t;
+struct A {
+  void* operator new(size_t bytes) const; //expected-error {{static member function cannot have 'const' qualifier}}
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Fznamznon wrote:

Perhaps a test with `volatile` qualifier also makes sense?
Crashes too https://godbolt.org/z/TWr8zqKK1

https://github.com/llvm/llvm-project/pull/80327