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/parser/bug-888002-2.js b/js/src/jit-test/tests/parser/bug-888002-2.js
new file mode 100644
index 0000000000..f0ccfca998
--- /dev/null
+++ b/js/src/jit-test/tests/parser/bug-888002-2.js
@@ -0,0 +1,12 @@
+// Constant folding doesn't affect non-strict delete.
+
+(function (x) {
+    // These senseless delete-expressions are legal. Per ES5.1 11.4.1 step 2,
+    // each one does nothing and returns true.
+    assertEq(delete (1 ? x : x), true);
+    assertEq(delete (0 || x), true);
+    assertEq(delete (1 && x), true);
+
+    // This one is legal too, but returns false.
+    assertEq(delete x, false);
+}());