1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/baseline/bug847484.js b/js/src/jit-test/tests/baseline/bug847484.js
new file mode 100644
index 0000000000..7e271c34bd
--- /dev/null
+++ b/js/src/jit-test/tests/baseline/bug847484.js
@@ -0,0 +1,14 @@
+function TestCase(n, d) {}
+function reportCompare() {
+    new TestCase;
+}
+Object.defineProperty(Object.prototype, "name", {});
+reportCompare();
+try {
+    function TestCase( n, d ) {
+	this.name = n;
+	this.description = d;
+    }
+    reportCompare();
+    reportCompare();
+} catch(exc3) { assertEq(0, 1); }