Add NormalFormalParameter.covariantKeyword setter and factory parameter.

pkg/analyzer/lib/src/dart/ast/utilities.dart

 // Copyright (c) 2014, 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 analyzer.src.dart.ast.utilities;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
@@ skipping 426 matching lines @@
           cloneNodeList(node.metadata),
           cloneToken(node.staticKeyword),
           cloneNode(node.fields),
           cloneToken(node.semicolon));
 
   @override
   FieldFormalParameter visitFieldFormalParameter(FieldFormalParameter node) =>
       astFactory.fieldFormalParameter(
           cloneNode(node.documentationComment),
           cloneNodeList(node.metadata),
+          cloneToken(node.covariantKeyword),
           cloneToken(node.keyword),
           cloneNode(node.type),
           cloneToken(node.thisKeyword),
           cloneToken(node.period),
           cloneNode(node.identifier),
           cloneNode(node.typeParameters),
           cloneNode(node.parameters));
 
   @override
   ForEachStatement visitForEachStatement(ForEachStatement node) {
@@ skipping 81 matching lines @@
           cloneNode(node.typeParameters),
           cloneNode(node.parameters),
           cloneToken(node.semicolon));
 
   @override
   FunctionTypedFormalParameter visitFunctionTypedFormalParameter(
           FunctionTypedFormalParameter node) =>
       astFactory.functionTypedFormalParameter(
           cloneNode(node.documentationComment),
           cloneNodeList(node.metadata),
+          cloneToken(node.covariantKeyword),
           cloneNode(node.returnType),
           cloneNode(node.identifier),
           cloneNode(node.typeParameters),
           cloneNode(node.parameters));
 
   @override
   AstNode visitGenericFunctionType(GenericFunctionType node) =>
       astFactory.genericFunctionType(
           cloneNode(node.returnType),
           cloneToken(node.functionKeyword),
@@ skipping 253 matching lines @@
   @override
   ShowCombinator visitShowCombinator(ShowCombinator node) => astFactory
       .showCombinator(cloneToken(node.keyword), cloneNodeList(node.shownNames));
 
   @override
   SimpleFormalParameter visitSimpleFormalParameter(
           SimpleFormalParameter node) =>
       astFactory.simpleFormalParameter(
           cloneNode(node.documentationComment),
           cloneNodeList(node.metadata),
+          cloneToken(node.covariantKeyword),
           cloneToken(node.keyword),
           cloneNode(node.type),
           cloneNode(node.identifier));
 
   @override
   SimpleIdentifier visitSimpleIdentifier(SimpleIdentifier node) =>
       astFactory.simpleIdentifier(cloneToken(node.token),
           isDeclaration: node.inDeclarationContext());
 
   @override
@@ skipping 2342 matching lines @@
           _cloneNodeList(node.metadata),
           _mapToken(node.staticKeyword),
           _cloneNode(node.fields),
           _mapToken(node.semicolon));
 
   @override
   FieldFormalParameter visitFieldFormalParameter(FieldFormalParameter node) =>
       astFactory.fieldFormalParameter(
           _cloneNode(node.documentationComment),
           _cloneNodeList(node.metadata),
+          _mapToken(node.covariantKeyword),
           _mapToken(node.keyword),
           _cloneNode(node.type),
           _mapToken(node.thisKeyword),
           _mapToken(node.period),
           _cloneNode(node.identifier),
           _cloneNode(node.typeParameters),
           _cloneNode(node.parameters));
 
   @override
   ForEachStatement visitForEachStatement(ForEachStatement node) {
@@ skipping 96 matching lines @@
           _cloneNode(node.typeParameters),
           _cloneNode(node.parameters),
           _mapToken(node.semicolon));
 
   @override
   FunctionTypedFormalParameter visitFunctionTypedFormalParameter(
           FunctionTypedFormalParameter node) =>
       astFactory.functionTypedFormalParameter(
           _cloneNode(node.documentationComment),
           _cloneNodeList(node.metadata),
+          _mapToken(node.covariantKeyword),
           _cloneNode(node.returnType),
           _cloneNode(node.identifier),
           _cloneNode(node.typeParameters),
           _cloneNode(node.parameters));
 
   @override
   AstNode visitGenericFunctionType(GenericFunctionType node) =>
       astFactory.genericFunctionType(
           _cloneNode(node.returnType),
           _mapToken(node.functionKeyword),
@@ skipping 347 matching lines @@
   @override
   ShowCombinator visitShowCombinator(ShowCombinator node) => astFactory
       .showCombinator(_mapToken(node.keyword), _cloneNodeList(node.shownNames));
 
   @override
   SimpleFormalParameter visitSimpleFormalParameter(
           SimpleFormalParameter node) =>
       astFactory.simpleFormalParameter(
           _cloneNode(node.documentationComment),
           _cloneNodeList(node.metadata),
+          _mapToken(node.covariantKeyword),
           _mapToken(node.keyword),
           _cloneNode(node.type),
           _cloneNode(node.identifier));
 
   @override
   SimpleIdentifier visitSimpleIdentifier(SimpleIdentifier node) {
     Token mappedToken = _mapToken(node.token);
     if (mappedToken == null) {
       // This only happens for SimpleIdentifiers created by the parser as part
       // of scanning documentation comments (the tokens for those identifiers
@@ skipping 5687 matching lines @@
     if (node.star != null) {
       sink.write("yield* ");
     } else {
       sink.write("yield ");
     }
     safelyVisitNode(node.expression);
     sink.write(";");
     return null;
   }
 }