Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/ion/bug701958.js b/js/src/jit-test/tests/ion/bug701958.js
new file mode 100644
index 0000000000..6320ef3a6c
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug701958.js
@@ -0,0 +1,12 @@
+function f(v)
+{
+    return v.x + v.x + v.y;
+}
+
+assertEq(f({ x: 1, y: 2 }), 4);
+assertEq(f({ __proto__: {x: 1, y: 2} }), 4);
+assertEq(f({ __proto__: {x: 0, y: 2}, x: 1 }), 4);
+
+// Ensure there is no aliasing.
+var global = 1;
+assertEq(f(Object.defineProperty({ y : 2 }, "x", { get : function(){ return global++; } })), 5);