Fix read handler bug in tools/test.dart: Replace dataHandler with lineHandler if using readLine.

tools/testing/dart/test_runner.dart

 // Copyright (c) 2011, 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("test_runner");
 
 #import("status_file_parser.dart");
 #import("test_progress.dart");
 #import("test_suite.dart");
 
@@ skipping 214 matching lines @@
                   List<String> arguments,
                   void exitHandler(int exitCode)) {
     process = new Process(executable, arguments);
     process.exitHandler = exitHandler;
     startTime = new Date.now();
     process.start();
     InputStream stdoutStream = process.stdout;
     InputStream stderrStream = process.stderr;
     StringInputStream stdoutStringStream = new StringInputStream(stdoutStream);
     StringInputStream stderrStringStream = new StringInputStream(stderrStream);
-    stdoutStringStream.dataHandler =
+    stdoutStringStream.lineHandler =
         makeReadHandler(stdoutStringStream, stdout);
-    stderrStringStream.dataHandler =
+    stderrStringStream.lineHandler =
         makeReadHandler(stderrStringStream, stderr);
     timeoutTimer = new Timer(timeoutHandler, 1000 * testCase.timeout, false);
   }
 
   void timeoutHandler(Timer unusedTimer) {
     timedOut = true;
     process.kill();
   }
 }
 
@@ skipping 37 matching lines @@
     _process.exitHandler = (exitCode) {
       _process.close();
     };
     _process.kill();
   }
 
   void doStartTest(TestCase testCase) {
     _startTime = new Date.now();
     _testStdout = new List<String>();
     _testStderr = new List<String>();
-    _stdoutStream.dataHandler = _readOutput(_stdoutStream, _testStdout);
-    _stderrStream.dataHandler = _readOutput(_stderrStream, _testStderr);
+    _stdoutStream.lineHandler = _readOutput(_stdoutStream, _testStdout);
+    _stderrStream.lineHandler = _readOutput(_stderrStream, _testStderr);
     _timer = new Timer(_timeoutHandler(testCase),
                        testCase.timeout * 1000,
                        false);
     _process.stdin.write(_createArgumentsLine(testCase.arguments).charCodes());
   }
 
   String _createArgumentsLine(List<String> arguments) {
     return Strings.join(arguments, ' ') + '\n';
   }
 
@@ skipping 55 matching lines @@
       _process.kill();
     };
   }
 
   void _startProcess() {
     _process = new Process(_executable, ['-batch']);
     _stdoutStream = new StringInputStream(_process.stdout);
     _stderrStream = new StringInputStream(_process.stderr);
     _testStdout = new List<String>();
     _testStderr = new List<String>();
-    _stdoutStream.dataHandler = _readOutput(_stdoutStream, _testStdout);
-    _stderrStream.dataHandler = _readOutput(_stderrStream, _testStderr);
+    _stdoutStream.lineHandler = _readOutput(_stdoutStream, _testStdout);
+    _stderrStream.lineHandler = _readOutput(_stderrStream, _testStderr);
     _process.exitHandler = _exitHandler;
     _process.start();
   }
 }
 
 
 class ProcessQueue {
   int _numProcesses = 0;
   int _activeTestListers = 0;
   int _maxProcesses;
@@ skipping 88 matching lines @@
       if (test.configuration['component'] == 'dartc') {
         _ensureDartcBatchRunnersStarted(test.executablePath);
         _getDartcBatchRunnerProcess().startTest(test);
       } else {
         new RunningProcess(test).start();
       }
       _numProcesses++;
     }
   }
 }