[clang] [clang]: support std::meta::info for primitive types (PR #190356)

[via cfe-commits]

================
@@ -3490,6 +3497,8 @@ StringRef BuiltinType::getName(const PrintingPolicy &Policy) const {
     return "unsigned _Accum";
   case ULongAccum:
     return "unsigned long _Accum";
+  case BuiltinType::MetaInfo:
+    return "meta::info";
----------------
Sirraide wrote:

```suggestion
    return "std::meta::info";
```

https://github.com/llvm/llvm-project/pull/190356