[clang] [clang-format] Fix requires misannotation with comma (PR #65908)

[Björn Schäpers via cfe-commits]

================
@@ -3369,9 +3369,13 @@ bool clang::format::UnwrappedLineParser::parseRequires() {
     case tok::kw_volatile:
     case tok::kw_const:
     case tok::comma:
-      FormatTok = Tokens->setPosition(StoredPosition);
-      parseRequiresExpression(RequiresToken);
-      return false;
+      if (OpenAngles == 0) {
+        FormatTok = Tokens->setPosition(StoredPosition);
+        parseRequiresExpression(RequiresToken);
+        return false;
+      } else {
+        break;
+      }
----------------
HazardyKnusperkeks wrote:

> The former is more consistent with the rest of the `switch` statement, except that there should be no `else` after the `return`. So I would prefer:
> 
> ```
>       if (OpenAngles == 0) {
>         FormatTok = Tokens->setPosition(StoredPosition);
>         parseRequiresExpression(RequiresToken);
>         return false;
>       }
>       break;
> ```

Also good, no `else` is my main point.

https://github.com/llvm/llvm-project/pull/65908