Support multiple optional parameters.

pkg/analyzer/test/generated/parser_fasta_test.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:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/src/generated/parser.dart' as analyzer;
 import 'package:analyzer/src/generated/utilities_dart.dart';
 import 'package:front_end/src/fasta/analyzer/ast_builder.dart';
@@ skipping 767 matching lines @@
 
   @override
   @failingTest
   void test_parseFormalParameter_type_function() {
     // TODO(scheglov): Unhandled event: FunctionTypedFormalParameter
     super.test_parseFormalParameter_type_function();
   }
 
   @override
   @failingTest
-  void test_parseFormalParameterList_named_multiple() {
-    // TODO(scheglov): Unhandled event: ValuedFormalParameter
-    super.test_parseFormalParameterList_named_multiple();
-  }
-
-  @override
-  @failingTest
-  void test_parseFormalParameterList_named_single() {
-    // TODO(scheglov): Unhandled event: OptionalFormalParameters
-    super.test_parseFormalParameterList_named_single();
-  }
-
-  @override
-  @failingTest
-  void test_parseFormalParameterList_named_trailing_comma() {
-    // TODO(scheglov): Unhandled event: OptionalFormalParameters
-    super.test_parseFormalParameterList_named_trailing_comma();
-  }
-
-  @override
-  @failingTest
-  void test_parseFormalParameterList_normal_named() {
-    // TODO(scheglov): Unhandled event: OptionalFormalParameters
-    super.test_parseFormalParameterList_normal_named();
-  }
-
-  @override
-  @failingTest
   void test_parseFormalParameterList_normal_named_inFunctionType() {
     // TODO(scheglov): Unhandled event: OptionalFormalParameters
     super.test_parseFormalParameterList_normal_named_inFunctionType();
   }
 
   @override
   @failingTest
-  void test_parseFormalParameterList_normal_positional() {
-    // TODO(scheglov): Unhandled event: OptionalFormalParameters
-    super.test_parseFormalParameterList_normal_positional();
-  }
-
-  @override
-  @failingTest
-  void test_parseFormalParameterList_positional_multiple() {
-    // TODO(scheglov): Unhandled event: ValuedFormalParameter
-    super.test_parseFormalParameterList_positional_multiple();
-  }
-
-  @override
-  @failingTest
-  void test_parseFormalParameterList_positional_single() {
-    // TODO(scheglov): Unhandled event: ValuedFormalParameter
-    super.test_parseFormalParameterList_positional_single();
-  }
-
-  @override
-  @failingTest
-  void test_parseFormalParameterList_positional_trailing_comma() {
-    // TODO(scheglov): Unhandled event: OptionalFormalParameters
-    super.test_parseFormalParameterList_positional_trailing_comma();
-  }
-
-  @override
-  @failingTest
   void test_parseFormalParameterList_prefixedType_partial() {
     // TODO(scheglov): Unimplemented: errors
     super.test_parseFormalParameterList_prefixedType_partial();
   }
 
   @override
   @failingTest
   void test_parseFormalParameterList_prefixedType_partial2() {
     // TODO(scheglov): Unimplemented: errors
     super.test_parseFormalParameterList_prefixedType_partial2();
@@ skipping 517 matching lines @@
   void test_parseTypeAlias_genericFunction_typeParameters_voidReturnType() {
     super.test_parseTypeAlias_genericFunction_typeParameters_voidReturnType();
   }
 
   @override
   @failingTest
   void test_parseTypeAlias_genericFunction_voidReturnType() {
     super.test_parseTypeAlias_genericFunction_voidReturnType();
   }
 }