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-rw-r--r--js/src/jit-test/lib/immutable-prototype.js4
1 files changed, 4 insertions, 0 deletions
diff --git a/js/src/jit-test/lib/immutable-prototype.js b/js/src/jit-test/lib/immutable-prototype.js
new file mode 100644
index 0000000000..75c1f4e3ca
--- /dev/null
+++ b/js/src/jit-test/lib/immutable-prototype.js
@@ -0,0 +1,4 @@
+function globalPrototypeChainIsMutable()
+{
+ return false;
+}