[clang] [lldb] [libc] [clang-tools-extra] [lld] [libcxx] [llvm] [libunwind] [flang] [compiler-rt] Fix clang to recognize new C23 modifiers %w and %wf when printing (PR #71771)

[Aaron Ballman via cfe-commits]

================
@@ -460,6 +463,14 @@ class FormatSpecifier {
     FieldWidth = Amt;
   }
 
+  void setExplicitlyFixedSize(unsigned s) {
+    ExplicitlyFixedSize = s;
----------------
AaronBallman wrote:

```suggestion
  void setExplicitlyFixedSize(unsigned S) {
    ExplicitlyFixedSize = S;
```

https://github.com/llvm/llvm-project/pull/71771