1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-eval-25.js b/js/src/jit-test/tests/debug/Frame-eval-25.js
new file mode 100644
index 000000000..cc91b2858
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-eval-25.js
@@ -0,0 +1,25 @@
+// Make sure we can recover missing arguments even when it gets assigned to
+// another slot.
+
+load(libdir + "asserts.js");
+load(libdir + "evalInFrame.js");
+
+function h() {
+  evalInFrame(1, "a.push(0)");
+}
+
+function f() {
+  var a = arguments;
+  h();
+}
+
+assertThrowsInstanceOf(f, TypeError);
+
+function g() {
+  {
+    let a = arguments;
+    h();
+  }
+}
+
+assertThrowsInstanceOf(g, TypeError);