WIP: Compute constant expressions in resolution.

pkg/compiler/lib/src/use_unused_api.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.
 
 /// This file use methods that aren't used by dart2js.dart, but that we wish to
 /// keep anyway. This might be general API that isn't currently in use,
 /// debugging aids, or API only used for testing (see TODO below).
 
 library dart2js.use_unused_api;
 
@@ skipping 86 matching lines @@
 
   @override
   visitRedirectingFactory(
       constants.RedirectingFactoryConstantConstructor constructor, arg) {
   }
 
   @override
   visitRedirectingGenerative(
       constants.RedirectingGenerativeConstantConstructor constructor, arg) {
   }
+
+  @override
+  visitErroneous(constants.ErroneousConstantConstructor constructor, arg) {
+  }
 }
 
 void useConstant([constants.ConstantValue constant,
                   constants.ConstantExpression expression,
                   constants.ConstructedConstantExpression constructedConstant,
                   constants.ConstantSystem cs,
                   constants.Environment env]) {
   constant.isObject;
   cs.isBool(constant);
   constructedConstant.computeInstanceType();
@@ skipping 216 matching lines @@
 
 class TreeVisitor1 extends tree_ir.ExpressionVisitor1
                       with tree_ir.StatementVisitor1 {
   noSuchMethod(inv) {}
 }
 
 useTreeVisitors() {
   new TreeVisitor1().visitExpression(null, null);
   new TreeVisitor1().visitStatement(null, null);
 }