1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testBug775807.js b/js/src/jit-test/tests/basic/testBug775807.js
new file mode 100644
index 0000000000..b136b0a81b
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testBug775807.js
@@ -0,0 +1,19 @@
+// |jit-test| --dump-bytecode
+
+(function() {
+    const x = ((function() {
+        return {
+            e: function() {
+                (function() {
+                    for (e in x) {}
+                })()
+            }
+        }
+    }(function() {
+        return {
+            t: {
+                c
+            }
+        }
+    })))
+})()