[clang] [NFC][Clang] Use range for loops in ClangDiagnosticsEmitter (PR #115573)

[Rahul Joshi via cfe-commits]

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@@ -468,11 +442,9 @@ static StringRef getModifierName(ModifierType MT) {
     return "objcclass";
   case MT_ObjCInstance:
     return "objcinstance";
-  case MT_Unknown:
+  default:
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jurahul wrote:

Done now.

https://github.com/llvm/llvm-project/pull/115573