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-rw-r--r--js/src/jit-test/tests/basic/bug777992.js9
1 files changed, 9 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug777992.js b/js/src/jit-test/tests/basic/bug777992.js
new file mode 100644
index 0000000000..c86f41ceb7
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug777992.js
@@ -0,0 +1,9 @@
+verifyprebarriers()
+x = []
+function z() {}
+Object.defineProperty(x, 2, {
+ value: z
+})
+gczeal(2, 2)
+y = x.slice(2)
+y.e = (function() {})