Revert "Revert "Build new IR for functions returning a constant.""

sdk/lib/_internal/compiler/implementation/ssa/interceptor_simplifier.dart

 // Copyright (c) 2013, 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.
 
 part of ssa;
 
 /**
  * This phase simplifies interceptors in multiple ways:
  *
  * 1) If the interceptor is for an object whose type is known, it
@@ skipping 250 matching lines @@
     if (constant == null) return false;
 
     Selector selector = node.selector;
     HInstruction instruction;
     if (selector.isGetter()) {
       instruction = new HInvokeDynamicGetter(
           selector,
           node.element,
           <HInstruction>[constant, node.inputs[1]],
           node.instructionType);
-    } else if (node.selector.isSetter()) {
+    } else if (selector.isSetter()) {
       instruction = new HInvokeDynamicSetter(
           selector,
           node.element,
           <HInstruction>[constant, node.inputs[1], node.inputs[2]],
           node.instructionType);
     } else {
       List<HInstruction> inputs = new List<HInstruction>.from(node.inputs);
       inputs[0] = constant;
       instruction = new HInvokeDynamicMethod(
           selector, inputs, node.instructionType, true);
     }
 
     HBasicBlock block = node.block;
     block.addAfter(node, instruction);
     block.rewrite(node, instruction);
     return true;
   }
 }