Dart2dart rename unresolved getters & Make IsCheck not be a primitive

sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree.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 dart_tree;
 
 import '../dart2jslib.dart' as dart2js;
 import '../elements/elements.dart';
 import '../universe/universe.dart';
 import '../ir/ir_nodes.dart' as ir;
@@ skipping 961 matching lines @@
     return new Assign(variable, value, visit(node.body),
                       isDeclaration: node.isDeclaration);
   }
 
   Statement visitDeclareFunction(ir.DeclareFunction node) {
     Variable variable = getClosureVariable(node.variable);
     FunctionDefinition function = makeSubFunction(node.definition);
     return new FunctionDeclaration(variable, function, visit(node.body));
   }
 
-  Statement visitAsCast(ir.AsCast node) {
+  Statement visitTypeOperator(ir.TypeOperator node) {
     Expression receiver = getVariableReference(node.receiver);
-    Expression concat = new TypeOperator(receiver, node.type, "as");
+    Expression concat = new TypeOperator(receiver, node.type, node.operator);
     return continueWithExpression(node.continuation, concat);
   }
 
   Statement visitInvokeConstructor(ir.InvokeConstructor node) {
     List<Expression> arguments = translateArguments(node.arguments);
     Expression invoke =
         new InvokeConstructor(node.type, node.target, node.selector, arguments);
     return continueWithExpression(node.continuation, invoke);
   }
 
@@ skipping 84 matching lines @@
     bool hasReturnType = !signature.type.returnType.treatAsDynamic;
     if (hasReturnType) {
       // This function cannot occur in expression context.
       // The successor will be filled in by visitLetPrim.
       return new FunctionDeclaration(getVariable(node), def, null);
     } else {
       return new FunctionExpression(def);
     }
   }
 
-  Expression visitIsCheck(ir.IsCheck node) {
-    return new TypeOperator(getVariableReference(node.receiver),
-                            node.type,
-                            "is");
-  }
-
   Expression visitParameter(ir.Parameter node) {
     // Continuation parameters are not visited (continuations themselves are
     // not visited yet).
     compiler.internalError(compiler.currentElement, 'Unexpected IR node.');
     return null;
   }
 
   Expression visitContinuation(ir.Continuation node) {
     // Until continuations with multiple uses are supported, they are not
     // visited.
@@ skipping 1299 matching lines @@
   }
 
   /// Destructively updates each entry of [l] with the result of visiting it.
   void _rewriteList(List<Expression> l) {
     for (int i = 0; i < l.length; i++) {
       l[i] = visitExpression(l[i]);
     }
   }
 }