[clang] Bugfix for chosing the correct deduction guide (PR #66487)

[Erich Keane via cfe-commits]

================
@@ -390,6 +390,11 @@ Bug Fixes to C++ Support
   we now produce a diagnostic. Fixes:
   (`#65522 <https://github.com/llvm/llvm-project/issues/65522>`_)
 
+- Fixed a bug where clang incorrectly considered implicitly generated deduction
+  guides from a non-templated constructor and a templated constructor as ambiguous,
+  rather than prefer the non-templated constructor as specified in 
+  [standard.group]p3
----------------
erichkeane wrote:

```suggestion
  [standard.group]p3.
```

https://github.com/llvm/llvm-project/pull/66487