1 files changed, 13 insertions, 0 deletions
diff --git a/runtime/JavaScript/tests/functional/t040bug80.g b/runtime/JavaScript/tests/functional/t040bug80.g
new file mode 100755
index 0000000..f43987c
--- /dev/null
+++ b/runtime/JavaScript/tests/functional/t040bug80.g
@@ -0,0 +1,13 @@
+lexer grammar t040bug80; 
+options {
+  language = JavaScript;
+}
+ 
+ID_LIKE
+    : 'defined' 
+    | {false}? Identifier 
+    | Identifier 
+    ; 
+ 
+fragment 
+Identifier: 'a'..'z'+ ; // with just 'a', output compiles