[clang] [Clang][Interp] Fix display of syntactically-invalid note for member function calls (PR #102170)

[via cfe-commits]

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@@ -67,15 +68,19 @@ struct Bar {
   template <typename U, int num>
   constexpr int fail2() const { return 1 / 0; } // expected-warning {{division by zero}} \
                                                 // expected-note {{division by zero}}
+#ifndef NEW_CONST_INTERP
   template <typename ...Args>
   constexpr int fail3(Args... args) const { return 1 / 0; } // expected-warning {{division by zero}} \
                                                 // expected-note {{division by zero}}
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yronglin wrote:

Seems we missed an `division by zero` diagnostic here.

https://github.com/llvm/llvm-project/pull/102170