Move resolution/operators.dart to elements/operators.dart

pkg/compiler/lib/src/serialization/constant_serialization.dart

Index: pkg/compiler/lib/src/serialization/constant_serialization.dart
diff --git a/pkg/compiler/lib/src/serialization/constant_serialization.dart b/pkg/compiler/lib/src/serialization/constant_serialization.dart
index 7ca5f586056122642383b890d4c6c98c86b5921e..e59867240de5b1b9134335ece05322ca805d3d66 100644
--- a/pkg/compiler/lib/src/serialization/constant_serialization.dart
+++ b/pkg/compiler/lib/src/serialization/constant_serialization.dart
@@ -6,10 +6,10 @@ library dart2js.serialization.constants;
 
 import '../constants/constructors.dart';
 import '../constants/expressions.dart';
-import '../elements/resolution_types.dart';
 import '../elements/elements.dart'
     show ConstructorElement, FieldElement, LocalVariableElement, MethodElement;
-import '../resolution/operators.dart';
+import '../elements/operators.dart';
+import '../elements/resolution_types.dart';
 import '../universe/call_structure.dart' show CallStructure;
 import 'keys.dart';
 import 'serialization.dart';