Refactoring to prepare for kernel based jump targets

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 1057 matching lines @@
   // now on.
   /// Call to notify that [member] is currently being inlined.
   void enterInlinedMember(covariant MemberEntity member);
 
   /// 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 branch in [node].
-  // TODO(johnniwinther): Split this by kind of [node]?
-  JumpTarget getJumpTarget(ir.TreeNode node, {bool isContinueTarget: false});
+  /// Returns the [JumpTarget] for the break statement [node].
+  JumpTarget getJumpTargetForBreak(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);
+
+  /// Returns the [JumpTarget] defined by the switch case [node] or `null`
+  /// if [node] is not a jump target.
+  JumpTarget getJumpTargetForSwitchCase(ir.SwitchCase node);
+
+  /// Returns the [JumpTarget] defined the do statement [node] or `null`
+  /// if [node] is not a jump target.
+  JumpTarget getJumpTargetForDo(ir.DoStatement node);
+
+  /// Returns the [JumpTarget] defined by the for statement [node] or `null`
+  /// if [node] is not a jump target.
+  JumpTarget getJumpTargetForFor(ir.ForStatement node);
+
+  /// Returns the [JumpTarget] defined by the for-in statement [node] or `null`
+  /// if [node] is not a jump target.
+  JumpTarget getJumpTargetForForIn(ir.ForInStatement node);
+
+  /// Returns the [JumpTarget] defined by the while statement [node] or `null`
+  /// if [node] is not a jump target.
+  JumpTarget getJumpTargetForWhile(ir.WhileStatement node);
 
   /// Returns the [LoopClosureRepresentationInfo] for the loop [node] in
   /// [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);
 }