Always enforce stack version limit during reductions

Fixes #669

cli/src/tests/mod.rs

@@ -3,6 +3,7 @@ mod helpers;
 mod highlight_test;
 mod node_test;
 mod parser_test;
+mod pathological_test;
 mod query_test;
 mod tags_test;
 mod test_highlight_test;

cli/src/tests/pathological_test.rs

@@ -0,0 +1,15 @@
+use super::helpers::allocations;
+use super::helpers::fixtures::get_language;
+use tree_sitter::Parser;
+
+#[test]
+fn test_pathological_example_1() {
+    let language = "cpp";
+    let source = r#"*ss<s"ss<sqXqss<s._<s<sq<(qqX<sqss<s.ss<sqsssq<(qss<qssqXqss<s._<s<sq<(qqX<sqss<s.ss<sqsssq<(qss<sqss<sqss<s._<s<sq>(qqX<sqss<s.ss<sqsssq<(qss<sq&=ss<s<sqss<s._<s<sq<(qqX<sqss<s.ss<sqs"#;
+
+    allocations::record(|| {
+        let mut parser = Parser::new();
+        parser.set_language(get_language(language)).unwrap();
+        parser.parse(source, None).unwrap();
+    });
+}