1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug999655.js b/js/src/jit-test/tests/debug/bug999655.js
new file mode 100644
index 0000000000..756ef8d0b3
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug999655.js
@@ -0,0 +1,11 @@
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+dbg.onNewScript = function(script) {
+    fscript = script.getChildScripts()[0];
+}
+g.eval("function f(x) { arguments[0] = 3; return x }");
+fscript.setBreakpoint(0, {hit:function(frame) {
+    assertEq(frame.arguments[0], 1);
+}});
+g.f(1);