Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 35 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/expressions/prefix-increment/target-cover-yieldexpr.js b/js/src/tests/test262/language/expressions/prefix-increment/target-cover-yieldexpr.js
new file mode 100644
index 0000000000..b22a09e52c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/prefix-increment/target-cover-yieldexpr.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-update-expressions-static-semantics-early-errors
+description: Applied to a "covered" YieldExpression
+info: |
+  UnaryExpression :
+    ++ UnaryExpression
+    -- UnaryExpression
+
+  - It is an early Syntax Error if IsValidSimpleAssignmentTarget of
+    UnaryExpression is invalid or strict.
+
+  12.15.3 Static Semantics: AssignmentTargetType
+
+  AssignmentExpression:
+    YieldExpression
+    ArrowFunction
+    AsyncArrowFunction
+    LeftHandSideExpression = AssignmentExpression
+    LeftHandSideExpression AssignmentOperator AssignmentExpression
+
+  1. Return invalid.
+features: [generators]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function* g() {
+  ++(yield);
+}