[clang] [clang][bytecode] Fix crash in void functions returning non-void expr… (PR #176550)

[Timm Baeder via cfe-commits]

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@@ -0,0 +1,6 @@
+// RUN: %clang_cc1 -fexperimental-new-constant-interpreter -verify %s
+
+constexpr void foo(int n) {
+  return n > 1 ? foo(n - 1) : 0; // expected-error {{return type 'void' must match the return type 'int' of the expression}}
+}
+static_assert((foo(2), true), "");
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tbaederr wrote:

Add this to an existing test case, where it will also be tested with the current interpreter.

https://github.com/llvm/llvm-project/pull/176550