Remove deprecated string features.

editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/completion/CompletionEngineTest.java

 /*
  * Copyright (c) 2012, the Dart project authors.
- * 
+ *
  * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
  * in compliance with the License. You may obtain a copy of the License at
- * 
+ *
  * http://www.eclipse.org/legal/epl-v10.html
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software distributed under the License
  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  * or implied. See the License for the specific language governing permissions and limitations under
  * the License.
  */
 package com.google.dart.tools.core.internal.completion;
 
 import com.google.common.base.Joiner;
 import com.google.dart.tools.core.analysis.AnalysisTestUtilities;
 import com.google.dart.tools.core.internal.index.impl.InMemoryIndex;
@@ skipping 21 matching lines @@
     test(
         "class X {static final num MAX = 0;num yc,xc;mth() {xc = yc = MA!1X;x!2c.abs();num f = M!3AX;}}",
         "1+MAX",
         "2+xc",
         "3+MAX",
         "3+Map");
   }
 
   public void testCommentSnippets002() throws Exception {
     test(
-        "class Y {String x='hi';mth() {x.l!1ength;int n = 0;x!2.charCodeAt(n!3);}}",
+        "class Y {String x='hi';mth() {x.l!1ength;int n = 0;x!2.codeUnitAt(n!3);}}",
         "1+length",
         "2+x",
         "3+n");
   }
 
   public void testCommentSnippets003() throws Exception {
     test(
         "class Z {!1Ex!2ception m = new !3Exception!4();mth() {var x = new Li!5st.!6fr!7om(['a']);}}",
         "1+void",
         "2+Exception",
@@ skipping 805 matching lines @@
   }
 
   /**
    * Run a set of completion tests on the given <code>originalSource</code>. The source string has
    * completion points embedded in it, which are identified by '!X' where X is a single character.
    * Each X is matched to positive or negative results in the array of
    * <code>validationStrings</code>. Validation strings contain the name of a prediction with a two
    * character prefix. The first character of the prefix corresponds to an X in the
    * <code>originalSource</code>. The second character is either a '+' or a '-' indicating whether
    * the string is a positive or negative result.
-   * 
+   *
    * @param originalSource The source for a completion test that contains completion points
    * @param validationStrings The positive and negative predictions
    */
   private void test(String originalSource, String... results) throws URISyntaxException,
       DartModelException {
     Collection<CompletionSpec> completionTests = CompletionSpec.from(originalSource, results);
     assertTrue(
         "Expected exclamation point ('!') within the source"
             + " denoting the position at which code completion should occur",
         !completionTests.isEmpty());
@@ skipping 15 matching lines @@
       }
       for (String result : test.positiveResults) {
         requestor.assertSuggested(result);
       }
       for (String result : test.negativeResults) {
         requestor.assertNotSuggested(result);
       }
     }
   }
 }