1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testBug579602.js b/js/src/jit-test/tests/basic/testBug579602.js
new file mode 100644
index 000000000..113a34dda
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testBug579602.js
@@ -0,0 +1,21 @@
+// don't panic
+
+f = function() {
+  x = yield
+}
+rv = f()
+for (a in rv) (function() {})
+x = new Proxy({}, (function() {
+  return {
+    defineProperty: gc
+  }
+})());
+with({
+  d: (({
+    x: Object.defineProperty(x, "", ({
+      set: Array.e
+    }))
+  }))
+}) {}
+
+// don't crash