Revert "Support unary - operator."

dart/pkg/dartdoc/mirrors/dart2js_mirror.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('mirrors.dart2js');
 
 #import('../../../lib/compiler/compiler.dart', prefix: 'diagnostics');
 #import('../../../lib/compiler/implementation/elements/elements.dart');
 #import('../../../lib/compiler/implementation/apiimpl.dart', prefix: 'api');
 #import('../../../lib/compiler/implementation/scanner/scannerlib.dart');
@@ skipping 107 matching lines @@
   const Dart2JsMethodKind(this.text);
 
   String toString() => text;
 }
 
 
 String _getOperatorFromOperatorName(String name) {
   Map<String, String> mapping = const {
     'eq': '==',
     'not': '~',
+    'negate': 'negate', // Will change.
     'index': '[]',
     'indexSet': '[]=',
     'mul': '*',
     'div': '/',
     'mod': '%',
     'tdiv': '~/',
     'add': '+',
     'sub': '-',
     'shl': '<<',
     'shr': '>>',
@@ skipping 1098 matching lines @@
                  && _function.modifiers.isFactory()) {
         _constructorName = '';
         int dollarPos = _name.indexOf('\$');
         if (dollarPos != -1) {
           _constructorName = _name.substring(dollarPos+1);
           _name = _name.substring(0, dollarPos);
         }
         _kind = Dart2JsMethodKind.FACTORY;
         // canonical name is TypeName.constructorName
         _canonicalName = '$_name.$_constructorName';
-      } else if (_name == 'negate') {
-        _operatorName = _name;
-        _name = 'operator';
-        _kind = Dart2JsMethodKind.OPERATOR;
-        // canonical name is 'operator operatorName'
-        _canonicalName = 'operator $_operatorName';
       } else if (_name.startsWith('operator\$')) {
         String str = _name.substring(9);
         _name = 'operator';
         _kind = Dart2JsMethodKind.OPERATOR;
         _operatorName = _getOperatorFromOperatorName(str);
         // canonical name is 'operator operatorName'
         _canonicalName = 'operator $_operatorName';
       } else {
         _kind = Dart2JsMethodKind.NORMAL;
         _canonicalName = _name;
@@ skipping 115 matching lines @@
     if (node !== null) {
       var span = system.compiler.spanFromNode(node, script.uri);
       return new Dart2JsLocation(script, span);
     } else {
       var span = system.compiler.spanFromElement(_variable);
       return new Dart2JsLocation(script, span);
     }
   }
 }