[clang] Update test for C++20 defaulting compilers after #173236 changed the expected diagnostic message. (PR #174377)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (dyung)

<details>
<summary>Changes</summary>

Change #<!-- -->173236 changed the emitted error message which caused the test `clang/test/SemaCXX/typeid.cpp` to fail if tested with a compiler that defaults to C++20 because the error message has changed. This change updates the test to expect the correct error message depending on whether the compiler defaults to C++20 or earlier.

---
Full diff: https://github.com/llvm/llvm-project/pull/174377.diff


1 Files Affected:

- (modified) clang/test/SemaCXX/typeid.cpp (+6-1) 


``````````diff
diff --git a/clang/test/SemaCXX/typeid.cpp b/clang/test/SemaCXX/typeid.cpp
index 26cad1c88f4d6..51a18e624c23d 100644
--- a/clang/test/SemaCXX/typeid.cpp
+++ b/clang/test/SemaCXX/typeid.cpp
@@ -2,7 +2,12 @@
 
 void f()
 {
-  (void)typeid(int); // expected-error {{you need to include <typeinfo> before using the 'typeid' operator}}
+  (void)typeid(int);
+#if __cplusplus >= 202002L
+   // expected-error at -2 {{you need to include <typeinfo> or import std before using the 'typeid' operator}}
+#else
+   // expected-error at -4 {{you need to include <typeinfo> before using the 'typeid' operator}}
+#endif
 }
 
 namespace std {

``````````

</details>


https://github.com/llvm/llvm-project/pull/174377