Issue 4881. Resolve new == and []+ operators

compiler/javatests/com/google/dart/compiler/CompilerTestCase.java

 // Copyright (c) 2012, 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.
 
 package com.google.dart.compiler;
 
 import static com.google.dart.compiler.common.ErrorExpectation.assertErrors;
 
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
 import com.google.dart.compiler.CommandLineOptions.CompilerOptions;
 import com.google.dart.compiler.ast.ASTVisitor;
 import com.google.dart.compiler.ast.DartExpression;
 import com.google.dart.compiler.ast.DartFunctionTypeAlias;
 import com.google.dart.compiler.ast.DartIdentifier;
 import com.google.dart.compiler.ast.DartNode;
 import com.google.dart.compiler.ast.DartUnit;
 import com.google.dart.compiler.ast.LibraryUnit;
 import com.google.dart.compiler.common.ErrorExpectation;
 import com.google.dart.compiler.common.SourceInfo;
 import com.google.dart.compiler.parser.DartParser;
 import com.google.dart.compiler.parser.DartParserRunner;
 import com.google.dart.compiler.resolver.Element;
 import com.google.dart.compiler.type.Type;
 import com.google.dart.compiler.type.TypeKind;
-import com.google.dart.compiler.util.apache.StringUtils;
 
 import junit.framework.TestCase;
 
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.Reader;
 import java.net.URI;
 import java.net.URL;
 import java.util.List;
 import java.util.Map;
@@ skipping 421 matching lines @@
         Element element = node.getElement();
         if (element != null && element.getName().equals(name)) {
           result[0] = element;
         }
         return super.visitIdentifier(node);
       }
     });
     return result[0];
   }
 }