1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1252453.js b/js/src/jit-test/tests/debug/bug1252453.js
new file mode 100644
index 0000000000..626d9be624
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1252453.js
@@ -0,0 +1,21 @@
+// |jit-test| --no-threads
+
+lfcode = new Array();
+gczeal(8,2);
+lfcode.push(`
+const root = newGlobal();
+const dbg = new Debugger;
+const wrappedRoot = dbg.addDebuggee(root);
+dbg.memory.trackingAllocationSites = 1;
+root.eval("(" + function immediate() { '_'  << foo } + "())");
+`);
+file = lfcode.shift();
+loadFile(file);
+function loadFile(lfVarx) {
+    try {
+        function newFunc(x) { return Function(x)(); }
+        newFunc(lfVarx)();
+    } catch (lfVare) {
+        print(lfVare)
+    }
+}