Fix all valgrind errors

v0/parser.c

@@ -22,6 +22,9 @@ Module* parser_parse(TokenStream* ts) {
 		fprintf(stderr, "Out of memory\n");
 		exit(1);
 	}
+	module->name = NULL;
+	module->imports = NULL;
+	module->import_count = 0;
 
 	module->name = (char*)malloc(t.text.length + 1);
 	if (module->name == NULL) {