Create SendStructure for unary and binary in resolution.

pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart

Index: pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
index fbe0cb49138da90f4ba503b378d9f34a40ba8a3e..dd98a740545105fcb2f9697a0f31976009973a8b 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_task.dart
@@ -996,10 +996,7 @@ abstract class IrBuilderVisitor extends ast.Visitor<ir.Primitive>
   ir.Primitive visitUnary(ast.Send node,
                           op.UnaryOperator operator, ast.Node expression, _) {
     // TODO(johnniwinther): Clean up the creation of selectors.
-    Selector selector = new Selector(
-        SelectorKind.OPERATOR,
-        new PublicName(operator.selectorName),
-        CallStructure.NO_ARGS);
+    Selector selector = operator.selector;
     ir.Primitive receiver = translateReceiver(expression);
     return irBuilder.buildDynamicInvocation(receiver, selector, const []);
   }