Revert "Rename internal library dart:_collection-dev to dart:_internal."

runtime/lib/errors_patch.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.
 
 patch class Error {
   /* patch */ static String _objectToString(Object object) {
     return Object._toString(object);
   }
 
   /* patch */ StackTrace get stackTrace => _stackTrace;
@@ skipping 198 matching lines @@
       return "";
     }
     var type = _invocation_type & _InvocationMirror._TYPE_MASK;
     var level = (_invocation_type >> _InvocationMirror._CALL_SHIFT) &
          _InvocationMirror._CALL_MASK;
     var type_str =
         (const ["method", "getter", "setter", "getter or setter"])[type];
     var args_message = args_mismatch ? " with matching arguments" : "";
     var msg;
     var memberName =
-        (_memberName == null) ? "" :_collection_dev.Symbol.getName(_memberName);
+        (_memberName == null) ? "" : internal.Symbol.getName(_memberName);
     switch (level) {
       case _InvocationMirror._DYNAMIC: {
         if (_receiver == null) {
           msg = "The null object does not have a $type_str '$memberName'"
               "$args_message.";
         } else {
           if (_receiver is Function) {
             msg = "Closure call with mismatched arguments: "
                 "function '$memberName'";
           } else {
@@ skipping 39 matching lines @@
           actual_buf.write(", ");
         }
         actual_buf.write(Error.safeToString(_arguments[i]));
       }
     }
     if (_namedArguments != null) {
       _namedArguments.forEach((Symbol key, var value) {
         if (i > 0) {
           actual_buf.write(", ");
         }
-        actual_buf.write(_collection_dev.Symbol.getName(key));
+        actual_buf.write(internal.Symbol.getName(key));
         actual_buf.write(": ");
         actual_buf.write(Error.safeToString(value));
         i++;
       });
     }
     var args_mismatch = _existingArgumentNames != null;
     StringBuffer msg_buf = new StringBuffer(_developerMessage(args_mismatch));
     String receiver_str;
     var level = (_invocation_type >> _InvocationMirror._CALL_SHIFT) &
         _InvocationMirror._CALL_MASK;
     if ( level == _InvocationMirror._TOP_LEVEL) {
       receiver_str = "top-level";
     } else {
       receiver_str = Error.safeToString(_receiver);
     }
     var memberName =
-        (_memberName == null) ? "" :_collection_dev.Symbol.getName(_memberName);
+        (_memberName == null) ? "" : internal.Symbol.getName(_memberName);
     if (!args_mismatch) {
       msg_buf.write(
           "NoSuchMethodError : method not found: '$memberName'\n"
           "Receiver: $receiver_str\n"
           "Arguments: [$actual_buf]");
     } else {
       String actualParameters = actual_buf.toString();
       StringBuffer formal_buf = new StringBuffer();
       for (int i = 0; i < _existingArgumentNames.length; i++) {
         if (i > 0) {
@@ skipping 12 matching lines @@
     return msg_buf.toString();
   }
 }
 
 class _JavascriptIntegerOverflowError extends Error {
   final Object _value;
 
   _JavascriptIntegerOverflowError(this._value);
   String toString() => "Javascript Integer Overflow: $_value";
 }