created the parser dir test to avoid having a

bunch of "unrelated" tests in one file

test/parser/utils.cpp

@@ -0,0 +1,15 @@
+#include "utils.hpp"
+
+#include <iostream>
+
+void check_parser_errors(const std::vector<ast::error::error*>& errors) {
+    if (errors.empty())
+        return;
+
+    std::cerr << "parser has " << errors.size() << " errors:\n";
+    for (const auto& error : errors)
+        std::cerr << '\t' << error->what() << "\n";
+
+    // Use doctest's FAIL macro to immediately stop
+    FAIL_CHECK("Parser had errors. See stderr for details.");
+}