Exit program if there were syntax errors

src/checker.c

@@ -714,6 +714,10 @@ void destroy_checker_info(CheckerInfo *i) {
 
 
 void init_checker(Checker *c, Parser *parser, BuildContext *bc) {
+	if (global_error_collector.count > 0) {
+		gb_exit(1);
+	}
+
 	gbAllocator a = heap_allocator();
 
 	c->parser = parser;