Fix for issue 18598

pkg/analyzer/test/generated/parser_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library engine.parser_test;
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/incremental_scanner.dart';
@@ skipping 4260 matching lines @@
         [
             ParserErrorCode.MISSING_IDENTIFIER,
             ParserErrorCode.MISSING_IDENTIFIER,
             ParserErrorCode.EQUALITY_CANNOT_BE_EQUALITY_OPERAND]);
     EngineTestCase.assertInstanceOf(
         (obj) => obj is BinaryExpression,
         BinaryExpression,
         expression.leftOperand);
   }
 
+  void test_nonStringLiteralUri_import() {
+    ParserTestCase.parseCompilationUnit(
+        "import dart:io; class C {}",
+        [ParserErrorCode.NON_STRING_LITERAL_AS_URI]);
+  }
+
   void test_prefixExpression_missing_operand_minus() {
     PrefixExpression expression =
         ParserTestCase.parseExpression("-", [ParserErrorCode.MISSING_IDENTIFIER]);
     EngineTestCase.assertInstanceOf(
         (obj) => obj is SimpleIdentifier,
         SimpleIdentifier,
         expression.operand);
     expect(expression.operand.isSynthetic, isTrue);
     expect(expression.operator.type, TokenType.MINUS);
   }
@@ skipping 6625 matching lines @@
     // Parse the source.
     //
     Parser parser = new Parser(null, listener);
     return invokeParserMethodImpl(
         parser,
         methodName,
         <Object>[tokenStream],
         tokenStream) as Token;
   }
 }