Const variables handled as final

lib/compiler/implementation/tree/nodes.dart

Index: lib/compiler/implementation/tree/nodes.dart
diff --git a/lib/compiler/implementation/tree/nodes.dart b/lib/compiler/implementation/tree/nodes.dart
index f3d37ec5e0467ee81f3b57eaafd24c0b0318e886..f55b4af71026a5ed615ff9dde1d96a3751a3c98c 100644
--- a/lib/compiler/implementation/tree/nodes.dart
+++ b/lib/compiler/implementation/tree/nodes.dart
@@ -1137,6 +1137,12 @@ class Modifiers extends Node {
   bool isFactory() => (flags & FLAG_FACTORY) != 0;
   bool isExternal() => (flags & FLAG_EXTERNAL) != 0;
 
+  /**
+   * Returns [:true:] iff the modifiers contain either [:final:] or [:const:],

[ahe, 2012/08/22 14:07:46]

The phrase "iff" is not standard vocabulary, so it is better to use "if and only
if", or rewrite the comment so you don't need to use "if and only if".

In this case, I wouldn't even include a documentation comment. It is obvious
what the method does.

[Johnni Winther, 2012/08/22 14:23:20]

The documentation was added to explain the semantic intention of the method,
i.e. explicitly+implicitly final as opposed to isFinal being syntactically
final.

+   * that is, that the declaration is either explicitly or implicitly final.
+   */
+  bool isFinalOrConst() => isFinal() || isConst();
+
   String toString() {
     LinkBuilder<String> builder = new LinkBuilder<String>();
     if (isStatic()) builder.addLast('static');