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-rw-r--r--js/src/jit-test/tests/ion/bug728188.js9
1 files changed, 9 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug728188.js b/js/src/jit-test/tests/ion/bug728188.js
new file mode 100644
index 000000000..5289e0dc2
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug728188.js
@@ -0,0 +1,9 @@
+// |jit-test| error:TypeError
+
+delete String.prototype.indexOf;
+
+function enterFunc (funcName) {
+ funcName.indexOf();
+}
+enterFunc(new Array("foo"));
+enterFunc(new String("Foo"));