Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 11 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/basic/testDecElem2.js b/js/src/jit-test/tests/basic/testDecElem2.js
new file mode 100644
index 0000000000..8fe74ff50f
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testDecElem2.js
@@ -0,0 +1,11 @@
+var obj = {s: ""};
+var name = "s";
+var a = [];
+for (var i = 0; i <= 13; i++) {
+    a[i] = 'x';
+    if (i > 8)
+        a[i] = --obj[name];  // first recording changes obj.s from string to number
+}
+assertEq(a.join(','), Array(10).join('x,') + '-1,-2,-3,-4,-5');
+assertEq(obj.s, -5);
+