Convert HashMap and LinkedHashMap to closed addressing hash tables.

sdk/lib/json/json.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 dart.json;
 
 // JSON parsing and serialization.
 
 /**
  * Error thrown by JSON serialization if an object cannot be serialized.
@@ skipping 484 matching lines @@
     // Format: '"'([^\x00-\x1f\\\"]|'\\'[bfnrt/\\"])*'"'
     // Initial position is right after first '"'.
     int start = position;
     int char;
     do {
       if (position == source.length) {
         fail(start - 1, "Unterminated string");
       }
       char = source.codeUnitAt(position);
       if (char == QUOTE) {
-        listener.handleString(source.substring(start, position));
+        String result = source.substring(start, position);

[Søren Gjesse, 2013/08/14 07:45:07]

Why?

[Lasse Reichstein Nielsen, 2013/08/14 08:38:34]

Needed it for debugging at some point. 
I saw no reason to remove it again. Naming intermediates is good for readability
:)

+        listener.handleString(result);
         return position + 1;
       }
       if (char < SPACE) {
         fail(position, "Control character in string");
       }
       position++;
     } while (char != BACKSLASH);
     // Backslash escape detected. Collect character codes for rest of string.
     int firstEscape = position - 1;
     List<int> chars = <int>[];
@@ skipping 301 matching lines @@
         first = false;
       });
       sink.write('}');
       seen.removeLast();
       return true;
     } else {
       return false;
     }
   }
 }