Revert "Use interceptors for is-checks (version 2)."

pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library tree_ir.optimization.statement_rewriter;
 
 import 'optimization.dart' show Pass;
 import '../tree_ir_nodes.dart';
 import '../../io/source_information.dart';
 
@@ skipping 719 matching lines @@
 
   Expression visitGetStatic(GetStatic node) {
     return node;
   }
 
   Expression visitSetStatic(SetStatic node) {
     node.value = visitExpression(node.value);
     return node;
   }
 
-  Expression visitGetTypeTestProperty(GetTypeTestProperty node) {
-    node.object = visitExpression(node.object);
-    return node;
-  }
-
   Expression visitCreateBox(CreateBox node) {
     return node;
   }
 
   Expression visitCreateInstance(CreateInstance node) {
     _rewriteList(node.arguments);
     return node;
   }
 
   Expression visitReifyRuntimeType(ReifyRuntimeType node) {
@@ skipping 484 matching lines @@
   VariableUseVisitor(this.callback);
 
   visitVariableUse(VariableUse use) => callback(use);
 
   visitInnerFunction(FunctionDefinition node) {}
 
   static void visit(Expression node, VariableUseCallback callback) {
     new VariableUseVisitor(callback).visitExpression(node);
   }
 }