Remove frogsh.

dart/lib/compiler/implementation/scanner/node_scanner_bench.dart

-// 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.
-
-#library('node_scanner_bench');
-#import('../util/characters.dart');
-#import('../../../../frog/lib/node/node.dart');
-#import('scannerlib.dart');
-#import('scanner_implementation.dart');
-#import('scanner_bench.dart');
-#import('../../../utf/utf.dart');
-#source('byte_strings.dart');
-#source('byte_array_scanner.dart');
-
-class NodeScannerBench extends ScannerBench {
-  int getBytes(String filename, void callback(bytes)) {
-    // This actually returns a buffer, not a String.
-    var s = fs.readFileSync(filename, null);
-    callback(s);
-    return s.length;
-  }
-
-  Scanner makeScanner(bytes) => new InflexibleByteArrayScanner(bytes);
-
-  void checkExistence(String filename) {
-    if (!path.existsSync(filename)) {
-      throw "no such file: ${filename}";
-    }
-  }
-}
-
-class InflexibleByteArrayScanner extends ByteArrayScanner {
-  InflexibleByteArrayScanner(List<int> bytes) : super(bytes);
-
-  int byteAt(int index) => (bytes.length > index) ? bytes[index] : $EOF;
-
-  int advance() {
-    // This method should be equivalent to the one in super. However,
-    // this is a *HOT* method and V8 performs better if it is easy to
-    // inline.
-    int index = ++byteOffset;
-    int next = (bytes.length > index) ? bytes[index] : $EOF;
-    return next;
-  }
-}
-
-main() {
-  new NodeScannerBench().main(argv);
-}