Add J-elements

pkg/compiler/lib/src/ssa/loop_handler.dart

 // Copyright (c) 2016, 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:kernel/ast.dart' as ir;
 
 import '../closure.dart' show LoopClosureRepresentationInfo;
 import '../elements/jumps.dart';
 import '../io/source_information.dart';
 import '../tree/tree.dart' as ast;
@@ skipping 290 matching lines @@
   /// a special "null handler" is returned.
   ///
   /// [isLoopJump] is [:true:] when the jump handler is for a loop. This is used
   /// to distinguish the synthesized loop created for a switch statement with
   /// continue statements from simple switch statements.
   JumpHandler createJumpHandler(T node, {bool isLoopJump});
 }
 
 /// A loop handler for the builder that just uses AST nodes directly.
 class SsaLoopHandler extends LoopHandler<ast.Node> {
-  final SsaBuilder builder;
+  final SsaAstGraphBuilder builder;
 
-  SsaLoopHandler(SsaBuilder builder)
+  SsaLoopHandler(SsaAstGraphBuilder builder)
       : this.builder = builder,
         super(builder);
 
   @override
   JumpTarget getTargetDefinition(ast.Node node) {
     return builder.elements.getTargetDefinition(node);
   }
 
   @override
   int loopKind(ast.Node node) => node.accept(const _SsaLoopTypeVisitor());
@@ skipping 15 matching lines @@
   int visitDoWhile(ast.DoWhile node) => HLoopBlockInformation.DO_WHILE_LOOP;
   int visitAsyncForIn(ast.AsyncForIn node) => HLoopBlockInformation.FOR_IN_LOOP;
   int visitSyncForIn(ast.SyncForIn node) => HLoopBlockInformation.FOR_IN_LOOP;
   int visitSwitchStatement(ast.SwitchStatement node) =>
       HLoopBlockInformation.SWITCH_CONTINUE_LOOP;
 }
 
 // TODO(het): Since kernel simplifies loop breaks and continues, we should
 // rewrite the loop handler from scratch to account for the simplified structure
 class KernelLoopHandler extends LoopHandler<ir.TreeNode> {
-  final KernelSsaBuilder builder;
+  final KernelSsaGraphBuilder builder;
 
   KernelAstAdapter get astAdapter => builder.astAdapter;
 
-  KernelLoopHandler(KernelSsaBuilder builder)
+  KernelLoopHandler(KernelSsaGraphBuilder builder)
       : this.builder = builder,
         super(builder);
 
   @override
   JumpHandler createJumpHandler(ir.TreeNode node, {bool isLoopJump}) =>
       builder.createJumpHandler(node, isLoopJump: isLoopJump);
 
   @override
   JumpTarget getTargetDefinition(ir.TreeNode node) =>
       builder.localsMap.getJumpTarget(node);
@@ skipping 22 matching lines @@
       HLoopBlockInformation.DO_WHILE_LOOP;
 
   @override
   int visitForInStatement(ir.ForInStatement node) =>
       HLoopBlockInformation.FOR_IN_LOOP;
 
   @override
   int visitSwitchStatement(ir.SwitchStatement node) =>
       HLoopBlockInformation.SWITCH_CONTINUE_LOOP;
 }