[libcxx-commits] [clang] [libcxx] [llvm] [Clang] Add warnings when mixing different charN_t types (PR #138708)

[Tom Honermann via libcxx-commits]

================
@@ -7719,6 +7742,11 @@ def warn_comparison_of_mixed_enum_types_switch : Warning<
   "%diff{ ($ and $)|}0,1">,
   InGroup<EnumCompareSwitch>;
 
+def warn_arith_conv_mixed__unicode_types
----------------
tahonermann wrote:

```suggestion
def warn_arith_conv_mixed_unicode_types
```

https://github.com/llvm/llvm-project/pull/138708