Handle switch continue

pkg/compiler/lib/src/js_model/locals.dart

Index: pkg/compiler/lib/src/js_model/locals.dart
diff --git a/pkg/compiler/lib/src/js_model/locals.dart b/pkg/compiler/lib/src/js_model/locals.dart
index 53bb0151c27ab7a1cf44e24c8c2cb6864db6e562..47e10b7654b20260279eb8f27881e35200f607ac 100644
--- a/pkg/compiler/lib/src/js_model/locals.dart
+++ b/pkg/compiler/lib/src/js_model/locals.dart
@@ -88,15 +88,15 @@ class KernelToLocalsMapImpl implements KernelToLocalsMap {
   @override
   JumpTarget getJumpTargetForContinueSwitch(ir.ContinueSwitchStatement node) {
     _ensureJumpMap(node.target);
-    throw new UnimplementedError(
-        'KernelToLocalsMapImpl.getJumpTargetForContinueSwitch');
+    JumpTarget target = _jumpTargetMap[node];
+    assert(target != null, failedAt(currentMember, 'No target for $node.'));
+    return target;
   }
 
   @override
   JumpTarget getJumpTargetForSwitchCase(ir.SwitchCase node) {
     _ensureJumpMap(node);
-    throw new UnimplementedError(
-        'KernelToLocalsMapImpl.getJumpTargetForSwitchCase');
+    return _jumpTargetMap[node];
   }
 
   @override
@@ -183,7 +183,9 @@ class JumpVisitor extends ir.Visitor {
 
   JJumpTarget _getJumpTarget(ir.TreeNode node) {
     return jumpTargetMap.putIfAbsent(node, () {
-      return new JJumpTarget(member, jumpIndex++);
+      return new JJumpTarget(member, jumpIndex++,
+          isSwitch: node is ir.SwitchStatement,
+          isSwitchCase: node is ir.SwitchCase);
     });
   }
 
@@ -275,6 +277,16 @@ class JumpVisitor extends ir.Visitor {
     jumpTargetMap[node] = target;
     super.visitBreakStatement(node);
   }
+
+  @override
+  visitContinueSwitchStatement(ir.ContinueSwitchStatement node) {
+    JJumpTarget target = _getJumpTarget(node.target);
+    target.isContinueTarget = true;
+    jumpTargetMap[node] = target;
+    JLabelDefinition label = _getOrCreateLabel(target, node.target);
+    label.isContinueTarget = true;
+    super.visitContinueSwitchStatement(node);
+  }
 }
 
 class JJumpTarget extends JumpTarget<ir.Node> {