Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 27 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/expressions/prefix-increment/arguments-nostrict.js b/js/src/tests/test262/language/expressions/prefix-increment/arguments-nostrict.js
new file mode 100644
index 0000000000..d9af8d7ad5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/prefix-increment/arguments-nostrict.js
@@ -0,0 +1,27 @@
+// Copyright (c) 2018 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-update-expressions
+description: >
+  In non-strict code, "++arguments" does not produce an early error.
+info: |
+  sec-identifiers-static-semantics-assignmenttargettype
+
+    1. If this IdentifierReference is contained in strict mode code and StringValue of Identifier is "eval" or  "arguments", return strict.
+    2. Return simple.
+
+  sec-update-expressions-static-semantics-early-errors
+
+    UpdateExpression ++ UnaryExpression
+
+    It is an early Reference Error if AssignmentTargetType of UnaryExpression is invalid.
+    It is an early Syntax Error if AssignmentTargetType of UnaryExpression is strict.
+flags: [noStrict]
+---*/
+
+if (false) {
+  ++arguments;
+}
+
+reportCompare(0, 0);