Test expression at the rhs of dot-MemberExpression is an IdentifierName

test/language/expressions/property-accessors/non-identifier-name.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-left-hand-side-expressions
+info: >
+  Token following DOT must be a valid identifier-name, test with string literal.
+description: |
+  12.3 Left-Hand-Side Expressions
+    MemberExpression[Yield, Await]:
+      MemberExpression[?Yield, ?Await] . IdentifierName
+
+negative:
+  type: SyntaxError
+  phase: early
+---*/
+
+throw "Test262: This statement should not be evaluated.";
+
+unresolvableReference."";