Improved parser scope errors.

Added the caret for indicating where the error is.

test/test.cpp

@@ -12,9 +12,9 @@ int gen_main()
 	using namespace gen;
 	log_fmt("\ngen_time:");
 
-	// check_sanity();
+	check_sanity();
 
-	checkSOA();
+	check_SOA();
 
 	return 0;
 }