Handle calls to redirecting factories.

pkg/compiler/lib/src/kernel/kernel_visitor.dart

 // Copyright (c) 2016, 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.md file.
 
 import 'package:kernel/ast.dart' as ir;
 import 'package:kernel/frontend/accessors.dart'
     show
         Accessor,
         IndexAccessor,
         NullAwarePropertyAccessor,
@@ skipping 1127 matching lines @@
 
   @override
   ir.MethodInvocation visitBinary(
       Send node, Node left, BinaryOperator operator, Node right, _) {
     return associateNode(
         buildBinaryOperator(left, operator.selectorName, right), node);
   }
 
   ir.Expression buildConstructorInvoke(NewExpression node, {bool isConst}) {
     ConstructorElement constructor = elements[node.send];
-    ConstructorTarget target =
-        kernel.computeEffectiveTarget(constructor, elements.getType(node));
+    ConstructorTarget target;
+    if (isConst) {
+      target =
+          kernel.computeEffectiveTarget(constructor, elements.getType(node));
+    } else {
+      target = new ConstructorTarget(constructor, elements.getType(node));
+    }
     NodeList arguments = node.send.argumentsNode;
     if (kernel.isSyntheticError(target.element)) {
       return new ir.MethodInvocation(new ir.InvalidExpression(),
           kernel.irName("call", currentElement), buildArguments(arguments));
     }
     ir.InvocationExpression invoke = target.element.isGenerativeConstructor
         ? buildGenerativeConstructorInvoke(target.element, arguments,
             isConst: isConst)
         : buildStaticInvoke(target.element, arguments, isConst: isConst);
     if (target.type.isInterfaceType) {
@@ skipping 1599 matching lines @@
       : this(null, true, node, initializers);
 
   accept(ir.Visitor v) => throw "unsupported";
 
   visitChildren(ir.Visitor v) => throw "unsupported";
 
   String toString() {
     return "IrFunction($kind, $isConstructor, $node, $initializers)";
   }
 }