Update dart:mirrors to use Symbol.

dart/runtime/lib/symbol_patch.dart

 // Copyright (c) 2013, 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 Symbol {
   final String _name;
   /* patch */ const Symbol(String name)
     : this._name = _validate(name);
 
 
   static final RegExp _validationPattern =
-      new RegExp(r'^[a-zA-Z$][a-zA-Z$0-9_]*=?');
+      new RegExp(r'^(?:[a-zA-Z$][a-zA-Z$0-9_]*=?|'
+                 r'-|'
+                 r'\[\]=|'
+                 r'~|'
+                 r'==|'
+                 r'\[\]|'
+                 r'\*|'
+                 r'/|'
+                 r'%|'
+                 r'~/|'
+                 r'\+|'
+                 r'<<|'
+                 r'>>|'
+                 r'>=|'
+                 r'>|'
+                 r'<=|'
+                 r'<|'
+                 r'&|'
+                 r'\^|'
+                 r'\|'
+                 r')');
 
   static _validate(String name) {
     if (name is! String) throw new ArgumentError('name must be a String');
-    if (name.isEmpty) return;
+    if (name.isEmpty) return name;

[ahe, 2013/04/11 20:12:27]

Note to self: I need to update the symbol_test.dart to cover this case.

[ahe, 2013/04/15 12:34:02]

Done.

     if (name.startsWith('_')) {
       throw new ArgumentError('"$name" is a private identifier');
     }
     if (!_validationPattern.hasMatch(name)) {
       throw new ArgumentError(
-          '"$name" is not an identifier or an empty String');
+          '"$name" is not an identifier or an empty String');
     }
     return name;
   }
 
   /* patch */ bool operator ==(other) {
-    return other is Symbol && _name == other._name;
+    return other is Symbol &&
+        Symbol == other.runtimeType &&
+        _name == other._name;
   }
 
   /* patch */ int get hashCode {
     const arbitraryPrime = 664597;
     return 0x1fffffff & (arbitraryPrime * _name.hashCode);
   }
+
+  /* patch */ static String getName(Symbol symbol) => symbol._name;

[ahe, 2013/04/11 20:12:27]

I should not submit this change.

[Ivan Posva, 2013/04/12 04:16:18]

Why not?

[ahe, 2013/04/15 12:34:02]

Because this method needs to be in the mirror API, not the core library.

 }