Fix various nits in VM patch files.

sdk/lib/core/errors.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.
 
 part of dart.core;
 
 /**
  * Error objects thrown in the case of a program failure.
  *
  * An `Error` object represents a program failure that the programmer
@@ skipping 141 matching lines @@
    * A message is built by suffixing the [message] argument with
    * the [name] argument (if provided) and the value. Example
    *
    *    "Invalid argument (foo): null"
    *
    * The `name` should match the argument name of the function, but if
    * the function is a method implementing an interface, and its argument
    * names differ from the interface, it might be more useful to use the
    * interface method's argument name (or just rename arguments to match).
    */
-  ArgumentError.value(value,
-                      [String this.name,
-                       String this.message])
+  ArgumentError.value(value, [this.name, this.message])
       : invalidValue = value,
         _hasValue = true;
 
   /**
    * Create an argument error for a `null` argument that must not be `null`.
    */
   ArgumentError.notNull([this.name])
       : _hasValue = false,
         message = "Must not be null",
         invalidValue = null;
@@ skipping 317 matching lines @@
  *
  * This [Error] is thrown by unfinished code that hasn't yet implemented
  * all the features it needs.
  *
  * If a class is not intending to implement the feature, it should throw
  * an [UnsupportedError] instead. This error is only intended for
  * use during development.
  */
 class UnimplementedError extends Error implements UnsupportedError {
   final String message;
-  UnimplementedError([String this.message]);
+  UnimplementedError([this.message]);
   String toString() => (this.message != null
                         ? "UnimplementedError: $message"
                         : "UnimplementedError");
 }
 
 
 /**
  * The operation was not allowed by the current state of the object.
  *
  * This is a generic error used for a variety of different erroneous
@@ skipping 51 matching lines @@
  * the first time it is read. If evaluating the initializer expression causes
  * another read of the variable, this error is thrown.
  */
 class CyclicInitializationError extends Error {
   final String variableName;
   CyclicInitializationError([this.variableName]);
   String toString() => variableName == null
       ? "Reading static variable during its initialization"
       : "Reading static variable '$variableName' during its initialization";
 }