import() must not allow a escape sequence

test/language/expressions/dynamic-import/escape-sequence-import.js

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+// Copyright (C) 2018 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-left-hand-side-expressions
+description: >
+  "import" must not contain escape sequences.
+info: |
+  5.1.5 Grammar Notation
+
+  Terminal symbols of the lexical, RegExp, and numeric string grammars are shown in fixed width
+  font, both in the productions of the grammars and throughout this specification whenever the
+  text directly refers to such a terminal symbol. These are to appear in a script exactly as
+  written. All terminal symbol code points specified in this way are to be understood as the
+  appropriate Unicode code points from the Basic Latin range, as opposed to any similar-looking
+  code points from other Unicode ranges.
+
+  CallExpression :
+    MemberExpressionArguments
+    SuperCall
+    ImportCall
+    CallExpressionArguments
+    CallExpressionTemplateLiteral
+
+  ImportCall :
+    import( AssignmentExpression )
+negative:
+  phase: parse
+  type: SyntaxError
+features: [dynamic-import]
+---*/
+
+throw "Test262: This statement should not be evaluated.";
+
+im\u0070ort('./empty_FIXTURE.js');