Fix Ptr cast

Author: lucic71

cpp2rust/converter/models/converter_refcount.cpp

@@ -1534,7 +1534,12 @@ bool ConverterRefCount::VisitImplicitCastExpr(clang::ImplicitCastExpr *expr) {
       PushParen paren(*this);
       StrCat(ConvertPointer(sub_expr));
       if (!IsReferenceType(sub_expr)) {
-        StrCat(keyword::kAs, ToString(expr->getType()));
+        StrCat(keyword::kAs);
+        if (expr->getType()->getPointeeType()->isBuiltinType()) {
+          StrCat(std::format("Ptr::<{}>", ConvertPointeeType(expr->getType())));
+        } else {
+          StrCat(ToString(expr->getType()));
+        }
       }
       return false;
     }