Run formatter on a few frontend and kernel files that hadn't been formatted.

pkg/kernel/lib/clone.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.
 library kernel.clone;
 
 import 'ast.dart';
 import 'type_algebra.dart';
 
 /// Visitor that return a clone of a tree, maintaining references to cloned
 /// objects.
@@ skipping 342 matching lines @@
       ..fileEndOffset = node.fileEndOffset;
   }
 
   visitProcedure(Procedure node) {
     return new Procedure(node.name, node.kind, clone(node.function),
         isAbstract: node.isAbstract,
         isStatic: node.isStatic,
         isExternal: node.isExternal,
         isConst: node.isConst,
         transformerFlags: node.transformerFlags,
-        fileUri: node.fileUri)..fileEndOffset = node.fileEndOffset;
+        fileUri: node.fileUri)
+      ..fileEndOffset = node.fileEndOffset;
   }
 
   visitField(Field node) {
     return new Field(node.name,
         type: visitType(node.type),
         initializer: cloneOptional(node.initializer),
         isFinal: node.isFinal,
         isConst: node.isConst,
         isStatic: node.isStatic,
         hasImplicitGetter: node.hasImplicitGetter,
         hasImplicitSetter: node.hasImplicitSetter,
         transformerFlags: node.transformerFlags,
-        fileUri: node.fileUri)..fileEndOffset = node.fileEndOffset;
+        fileUri: node.fileUri)
+      ..fileEndOffset = node.fileEndOffset;
   }
 
   visitTypeParameter(TypeParameter node) {
     var newNode = new TypeParameter(node.name);
     typeSubstitution[node] = new TypeParameterType(newNode);
     newNode.bound = visitType(node.bound);
     return newNode;
   }
 
   TreeNode cloneFunctionNodeBody(FunctionNode node) => cloneOptional(node.body);
@@ skipping 16 matching lines @@
   visitArguments(Arguments node) {
     return new Arguments(node.positional.map(clone).toList(),
         types: node.types.map(visitType).toList(),
         named: node.named.map(clone).toList());
   }
 
   visitNamedExpression(NamedExpression node) {
     return new NamedExpression(node.name, clone(node.value));
   }
 }