Remove Compiler.inferenceWorld

pkg/compiler/lib/src/common/backend_api.dart

Index: pkg/compiler/lib/src/common/backend_api.dart
diff --git a/pkg/compiler/lib/src/common/backend_api.dart b/pkg/compiler/lib/src/common/backend_api.dart
index 764341ce993875a0a9399ce07be909c11eba3568..5fef0860c3967343258d18a2b009676a97cd094a 100644
--- a/pkg/compiler/lib/src/common/backend_api.dart
+++ b/pkg/compiler/lib/src/common/backend_api.dart
@@ -33,6 +33,7 @@ import '../serialization/serialization.dart'
 import '../tree/tree.dart' show Node;
 import '../universe/world_impact.dart'
     show ImpactStrategy, WorldImpact, WorldImpactBuilder;
+import '../world.dart' show ClosedWorldRefiner;
 import 'codegen.dart' show CodegenWorkItem;
 import 'tasks.dart' show CompilerTask;
 
@@ -106,7 +107,7 @@ abstract class Backend extends Target {
 
   List<CompilerTask> get tasks;
 
-  void onResolutionComplete() {}
+  void onResolutionComplete(ClosedWorldRefiner closedWorldRefiner) {}
   void onTypeInferenceComplete() {}
 
   bool classNeedsRti(ClassElement cls);