Fix dartc in optimized mode (broken in r3358).

compiler/java/com/google/dart/compiler/backend/js/BasicOptimizationStrategy.java

Index: compiler/java/com/google/dart/compiler/backend/js/BasicOptimizationStrategy.java
diff --git a/compiler/java/com/google/dart/compiler/backend/js/BasicOptimizationStrategy.java b/compiler/java/com/google/dart/compiler/backend/js/BasicOptimizationStrategy.java
index 6e98bb0684ebf895c9d0af5a656839e0d0232454..ad15100b411d1e35b295e50bfc1e431ba9603229 100644
--- a/compiler/java/com/google/dart/compiler/backend/js/BasicOptimizationStrategy.java
+++ b/compiler/java/com/google/dart/compiler/backend/js/BasicOptimizationStrategy.java
@@ -423,7 +423,7 @@ class BasicOptimizationStrategy implements OptimizationStrategy {
     // For now we only inline classes that don't have Only immediate subtypes of object that are
     // not subclassed.
     // We will refine this in the near future to include arbitrary class hierarchies.
-    if (classElement.getModifiers().isNative()) {
+    if (classElement.getNativeName() != null) {

[mmendez, 2012/01/18 16:27:54]

Nit: I'm not sure how many other places might assume that native classes have
the native bit set in the modifiers.  The fact that the modifier does not jive
with the native name attribute is confusing.

Another option is to leave this as classElement.getModifiers and append
"modifiers = modifiers.makeNative();" to DartParser.parseClass line 611. 

       return false;
     }
     List<ConstructorElement> constructors = classElement.getConstructors();