dart2js cps: Introduce GetStatic/SetStatic.

pkg/compiler/lib/src/cps_ir/cps_ir_tracer.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 dart2js.ir_tracer;
 
 import 'dart:async' show EventSink;
 
 import 'cps_ir_nodes.dart' as cps_ir hide Function;
 import '../tracer.dart';
@@ skipping 298 matching lines @@
     printStmt(dummy, 'SetField $object.$field = $value');
     visit(node.body);
   }
 
   visitGetField(cps_ir.GetField node) {
     String object = formatReference(node.object);
     String field = node.field.name;
     return 'GetField($object.$field)';
   }
 
+  visitGetStatic(cps_ir.GetStatic node) {
+    String element = node.element.name;
+    return 'GetStatic($element)';
+  }
+
+  visitSetStatic(cps_ir.SetStatic node) {
+    String dummy = names.name(node);
+    String element = node.element.name;
+    String value = formatReference(node.value);
+    printStmt(dummy, 'SetStatic $element = $value');
+    visit(node.body);
+  }
+
   visitCreateBox(cps_ir.CreateBox node) {
     return 'CreateBox';
   }
 
   visitCreateInstance(cps_ir.CreateInstance node) {
     String className = node.classElement.name;
     String arguments = node.arguments.map(formatReference).join(', ');
     String typeInformation =
         node.typeInformation.map(formatReference).join(', ');
     return 'CreateInstance $className ($arguments) <$typeInformation>';
@@ skipping 203 matching lines @@
   }
 
   visitSetMutableVariable(cps_ir.SetMutableVariable exp) {
     visit(exp.body);
   }
 
   visitSetField(cps_ir.SetField exp) {
     visit(exp.body);
   }
 
+  visitSetStatic(cps_ir.SetStatic exp) {
+    visit(exp.body);
+  }
+
   visitDeclareFunction(cps_ir.DeclareFunction exp) {
     visit(exp.body);
   }
 
   visitBranch(cps_ir.Branch exp) {
     cps_ir.Continuation trueTarget = exp.trueContinuation.definition;
     if (!trueTarget.isReturnContinuation) {
       currentBlock.addEdgeTo(getBlock(trueTarget));
     }
     cps_ir.Continuation falseTarget = exp.falseContinuation.definition;
@@ skipping 39 matching lines @@
   }
   visitParameter(cps_ir.Parameter node) {
     unexpectedNode(node);
   }
   visitMutableVariable(cps_ir.MutableVariable node) {
     unexpectedNode(node);
   }
   visitGetField(cps_ir.GetField node) {
     unexpectedNode(node);
   }
+  visitGetStatic(cps_ir.GetStatic node) {
+    unexpectedNode(node);
+  }
   visitCreateBox(cps_ir.CreateBox node) {
     unexpectedNode(node);
   }
   visitCreateInstance(cps_ir.CreateInstance node) {
     unexpectedNode(node);
   }
   visitIsTrue(cps_ir.IsTrue node) {
     unexpectedNode(node);
   }
   visitIdentical(cps_ir.Identical node) {
@@ skipping 16 matching lines @@
   }
 
   visitNonTailThrow(cps_ir.NonTailThrow node) {
     unexpectedNode(node);
   }
 
   visitCreateInvocationMirror(cps_ir.CreateInvocationMirror node) {
     unexpectedNode(node);
   }
 }