dart2js cps: Access to lazily initialized fields.

pkg/compiler/lib/src/js_backend/codegen/task.dart

Index: pkg/compiler/lib/src/js_backend/codegen/task.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen/task.dart b/pkg/compiler/lib/src/js_backend/codegen/task.dart
index 3befc854bed4ab103be8ebf18f82d2c6628b5e93..d3589fa2462c6c477127111ef733da2173f254b9 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/task.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/task.dart
@@ -104,8 +104,7 @@ class CpsFunctionCompiler implements FunctionCompiler {
 
   cps.FunctionDefinition compileToCpsIR(AstElement element) {
     // TODO(sigurdm): Support these constructs.
-    if (element.isNative ||
-        element.isField) {
+    if (element.isNative) {
       giveUp('unsupported element kind: ${element.name}:${element.kind}');
     }