dart2js: Constant folding and specialization for remainder

pkg/compiler/lib/src/ssa/codegen.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.
 
 import 'dart:math' as math;
 import '../common.dart';
 import '../common/codegen.dart' show CodegenRegistry, CodegenWorkItem;
 import '../common/tasks.dart' show CompilerTask;
 import '../compiler.dart' show Compiler;
 import '../constants/constant_system.dart';
@@ skipping 1377 matching lines @@
     assert(node.right.isPositiveInteger(compiler));
     use(node.left);
     js.Expression jsLeft = pop();
     use(node.right);
     push(new js.Binary('/', jsLeft, pop())
         .withSourceInformation(node.sourceInformation));
     push(new js.Binary('|', pop(), new js.LiteralNumber("0"))
         .withSourceInformation(node.sourceInformation));
   }
 
+  visitRemainder(HRemainder node) {
+    return visitInvokeBinary(node, '%');
+  }
+
   visitNegate(HNegate node) => visitInvokeUnary(node, '-');
 
   visitLess(HLess node) => visitRelational(node, '<');
   visitLessEqual(HLessEqual node) => visitRelational(node, '<=');
   visitGreater(HGreater node) => visitRelational(node, '>');
   visitGreaterEqual(HGreaterEqual node) => visitRelational(node, '>=');
 
   visitBoolify(HBoolify node) {
     assert(node.inputs.length == 1);
     use(node.inputs[0]);
@@ skipping 1688 matching lines @@
     registry.registerStaticUse(new StaticUse.staticInvoke(
         helper, new CallStructure.unnamed(argumentCount)));
     return backend.emitter.staticFunctionAccess(helper);
   }
 
   @override
   void visitRef(HRef node) {
     visit(node.value);
   }
 }