Dart2dart rename unresolved getters & Make IsCheck not be a primitive

sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree.dart

Index: sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree.dart
diff --git a/sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree.dart b/sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree.dart
index 7149db85bf43212f243119be763d30c1de232709..a060b98b3a0b527d152c5c3590c77484686c3da6 100644
--- a/sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree.dart
+++ b/sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree.dart
@@ -979,9 +979,9 @@ class Builder extends ir.Visitor<Node> {
     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);
   }
 
@@ -1086,12 +1086,6 @@ class Builder extends ir.Visitor<Node> {
     }
   }
 
-  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).