Enqueue fields for resolution in the enqueuer, instead of doing it in the resolver.

sdk/lib/_internal/compiler/implementation/enqueue.dart

Index: sdk/lib/_internal/compiler/implementation/enqueue.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/enqueue.dart	(revision 23257)
+++ sdk/lib/_internal/compiler/implementation/enqueue.dart	(working copy)
@@ -282,6 +282,12 @@
         cls.ensureResolved(compiler);
         cls.implementation.forEachMember(processInstantiatedClassMember);
         if (isResolutionQueue) {
+          // Only the resolution queue needs to operate on individual
+          // fields. The codegen enqueuer inlines the potential field
+          // intializations in the constructor.
+          cls.implementation.forEachInstanceField((_, Element field) {
+            addToWorkList(field);
+          }, includeSuperAndInjectedMembers: true);
           compiler.resolver.checkClass(cls);
         }
       }