Handle break as continue

pkg/compiler/lib/src/kernel/element_map.dart

 // Copyright (c) 2017, 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 'package:js_runtime/shared/embedded_names.dart';
 import 'package:kernel/ast.dart' as ir;
 
 import '../closure.dart';
 import '../common.dart';
 import '../common/names.dart';
@@ skipping 1060 matching lines @@
 
   /// Call to notify that [member] is no longer being inlined.
   void leaveInlinedMember(covariant MemberEntity member);
 
   /// Returns the [Local] for [node].
   Local getLocal(ir.VariableDeclaration node);
 
   /// Returns the [JumpTarget] for the break statement [node].
   JumpTarget getJumpTargetForBreak(ir.BreakStatement node);
 
+  /// Returns `true` if [node] should generate a `continue` to its [JumpTarget].
+  bool generateContinueForBreak(ir.BreakStatement node);
+
   /// Returns the [JumpTarget] defined by the labelled statement [node] or
   /// `null` if [node] is not a jump target.
   JumpTarget getJumpTargetForLabel(ir.LabeledStatement node);
 
   /// Returns the [JumpTarget] defined by the switch statement [node] or `null`
   /// if [node] is not a jump target.
   JumpTarget getJumpTargetForSwitch(ir.SwitchStatement node);
 
   /// Returns the [JumpTarget] for the continue switch statement [node].
   JumpTarget getJumpTargetForContinueSwitch(ir.ContinueSwitchStatement node);
@@ skipping 22 matching lines @@
   /// [closureClassMaps].
   LoopClosureRepresentationInfo getClosureRepresentationInfoForLoop(
       ClosureDataLookup closureLookup, ir.TreeNode node);
 }
 
 /// Comparator for the canonical order or named arguments.
 // TODO(johnniwinther): Remove this when named parameters are sorted in dill.
 int namedOrdering(ir.VariableDeclaration a, ir.VariableDeclaration b) {
   return a.name.compareTo(b.name);
 }