kmod's comments on arg_unpacking

src/core/cfg.cpp

@@ -2523,6 +2523,8 @@ CFG* computeCFG(SourceInfo* source, std::vector<AST_stmt*> body) {
                 AST_Name* arg_name_expr
                     = new AST_Name(arg_name, AST_TYPE::Load, arg_expr->lineno, arg_expr->col_offset);
                 visitor.pushAssign(arg_expr, arg_name_expr);
+            } else {
+                assert(arg_expr->type == AST_TYPE::Name);
             }
             counter++;
         }

test/tests/global_and_local.py

-# - this particular check isn't implemented yet
-
 # I would have expected this to be valid, but cPython and pypy err out saying "name 'x' is local and global"
 
 try: