Fix regression on constant folding an interceptor into a dynamic invocation.

lib/compiler/implementation/ssa/builder.dart

 // Copyright (c) 2012, 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.
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
   SourceString mapOperatorToMethodName(Operator op) {
     String name = op.source.stringValue;
@@ skipping 1739 matching lines @@
     SourceString getterName = send.selector.asIdentifier().source;
     Selector selector = elements.getSelector(send);
     Element staticInterceptor = null;
     if (methodInterceptionEnabled) {
       staticInterceptor = interceptors.getStaticGetInterceptor(getterName);
     }
     if (staticInterceptor != null) {
       HStatic target = new HStatic(staticInterceptor);
       add(target);
       List<HInstruction> inputs = <HInstruction>[target, receiver];
-      push(new HInvokeInterceptor(selector, getterName, true, inputs));
+      push(new HInvokeInterceptor(selector, getterName, inputs, getter: true));
     } else {
       push(new HInvokeDynamicGetter(selector, null, getterName, receiver));
     }
   }
 
   void generateGetter(Send send, Element element) {
     if (Elements.isStaticOrTopLevelField(element)) {
       if (element.kind == ElementKind.FIELD && !element.isAssignable()) {
         // A static final. Get its constant value and inline it.
         Constant value = compiler.constantHandler.compileVariable(element);
@@ skipping 23 matching lines @@
     SourceString dartSetterName = send.selector.asIdentifier().source;
     Selector selector = elements.getSelector(send);
     Element staticInterceptor = null;
     if (methodInterceptionEnabled) {
       staticInterceptor = interceptors.getStaticSetInterceptor(dartSetterName);
     }
     if (staticInterceptor != null) {
       HStatic target = new HStatic(staticInterceptor);
       add(target);
       List<HInstruction> inputs = <HInstruction>[target, receiver, value];
-      add(new HInvokeInterceptor(selector, dartSetterName, false, inputs));
+      add(new HInvokeInterceptor(
+          selector, dartSetterName, inputs, setter: true));
     } else {
       add(new HInvokeDynamicSetter(selector, null, dartSetterName,
                                    receiver, value));
     }
     stack.add(value);
   }
 
   void generateSetter(SendSet send, Element element, HInstruction value) {
     if (Elements.isStaticOrTopLevelField(element)) {
       Selector selector = elements.getSelector(send);
@@ skipping 186 matching lines @@
       interceptor = interceptors.getStaticInterceptor(dartMethodName,
                                                       node.argumentCount());
     }
     if (interceptor != null) {
       HStatic target = new HStatic(interceptor);
       add(target);
       inputs.add(target);
       visit(node.receiver);
       inputs.add(pop());
       addGenericSendArgumentsToList(node.arguments, inputs);
-      push(new HInvokeInterceptor(selector, dartMethodName, false, inputs));
+      push(new HInvokeInterceptor(selector, dartMethodName, inputs));
       return;
     }
 
     if (node.receiver === null) {
       inputs.add(localsHandler.readThis());
     } else {
       visit(node.receiver);
       inputs.add(pop());
     }
 
@@ skipping 724 matching lines @@
     // The iterator is shared between initializer, condition and body.
     HInstruction iterator;
     void buildInitializer() {
       SourceString iteratorName = const SourceString("iterator");
       Element interceptor = interceptors.getStaticInterceptor(iteratorName, 0);
       assert(interceptor != null);
       HStatic target = new HStatic(interceptor);
       add(target);
       visit(node.expression);
       List<HInstruction> inputs = <HInstruction>[target, pop()];
-      iterator = new HInvokeInterceptor(selector, iteratorName, false, inputs);
+      iterator = new HInvokeInterceptor(selector, iteratorName, inputs);
       add(iterator);
     }
     HInstruction buildCondition() {
       push(new HInvokeDynamicMethod(
            selector, const SourceString('hasNext'), <HInstruction>[iterator]));
       return popBoolified();
     }
     void buildBody() {
       push(new HInvokeDynamicMethod(
            selector, const SourceString('next'), <HInstruction>[iterator]));
@@ skipping 511 matching lines @@
                                    <HInstruction>[target, input],
                                    HType.STRING));
     return builder.pop();
   }
 
   HInstruction result() {
     flushLiterals();
     return prefix;
   }
 }