Remove Compiler access from ResolutionEnqueuer

pkg/compiler/lib/src/universe/function_set.dart

Index: pkg/compiler/lib/src/universe/function_set.dart
diff --git a/pkg/compiler/lib/src/universe/function_set.dart b/pkg/compiler/lib/src/universe/function_set.dart
index 677ffc53d6d967e3cf92f8e872b39f91ca27cfa7..0fb00187f1daab198ecb8b13807d6c59c539d192 100644
--- a/pkg/compiler/lib/src/universe/function_set.dart
+++ b/pkg/compiler/lib/src/universe/function_set.dart
@@ -17,11 +17,9 @@ import 'world_builder.dart' show ReceiverConstraint;
 // too and stricly they aren't functions. Maybe this needs a better
 // name -- something like ElementSet seems a bit too generic.
 class FunctionSet {
-  final Compiler compiler;
+  final ClosedWorld closedWorld;
   final Map<String, FunctionSetNode> nodes = new Map<String, FunctionSetNode>();
-  FunctionSet(this.compiler);
-
-  ClosedWorld get closedWorld => compiler.closedWorld;
+  FunctionSet(this.closedWorld);
 
   FunctionSetNode newNode(String name) => new FunctionSetNode(name);