Fix cascade tests with Fasta.

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/ast/token.dart' as analyzer;
 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';
@@ skipping 410 matching lines @@
   }
 
   @override
   @failingTest
   void test_parseAwaitExpression() {
     super.test_parseAwaitExpression();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_i() {
-    super.test_parseCascadeSection_i();
-  }
-
-  @override
-  @failingTest
-  void test_parseCascadeSection_ia() {
-    super.test_parseCascadeSection_ia();
-  }
-
-  @override
-  @failingTest
   void test_parseCascadeSection_ia_typeArgumentComments() {
     super.test_parseCascadeSection_ia_typeArgumentComments();
   }
 
   @override
   @failingTest
   void test_parseCascadeSection_ia_typeArguments() {
     super.test_parseCascadeSection_ia_typeArguments();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_ii() {
-    super.test_parseCascadeSection_ii();
-  }
-
-  @override
-  @failingTest
   void test_parseCascadeSection_ii_typeArgumentComments() {
     super.test_parseCascadeSection_ii_typeArgumentComments();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_ii_typeArguments() {
-    super.test_parseCascadeSection_ii_typeArguments();
-  }
-
-  @override
-  @failingTest
-  void test_parseCascadeSection_p() {
-    super.test_parseCascadeSection_p();
-  }
-
-  @override
-  @failingTest
-  void test_parseCascadeSection_p_assign() {
-    super.test_parseCascadeSection_p_assign();
-  }
-
-  @override
-  @failingTest
   void test_parseCascadeSection_p_assign_withCascade() {
     super.test_parseCascadeSection_p_assign_withCascade();
   }
 
   @override
   @failingTest
   void test_parseCascadeSection_p_assign_withCascade_typeArgumentComments() {
     super.test_parseCascadeSection_p_assign_withCascade_typeArgumentComments();
   }
 
   @override
   @failingTest
   void test_parseCascadeSection_p_assign_withCascade_typeArguments() {
     super.test_parseCascadeSection_p_assign_withCascade_typeArguments();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_p_builtIn() {
-    super.test_parseCascadeSection_p_builtIn();
-  }
-
-  @override
-  @failingTest
-  void test_parseCascadeSection_pa() {
-    super.test_parseCascadeSection_pa();
-  }
-
-  @override
-  @failingTest
   void test_parseCascadeSection_pa_typeArgumentComments() {
     super.test_parseCascadeSection_pa_typeArgumentComments();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_pa_typeArguments() {
-    super.test_parseCascadeSection_pa_typeArguments();
-  }
-
-  @override
-  @failingTest
-  void test_parseCascadeSection_paa() {
-    super.test_parseCascadeSection_paa();
-  }
-
-  @override
-  @failingTest
   void test_parseCascadeSection_paa_typeArgumentComments() {
     super.test_parseCascadeSection_paa_typeArgumentComments();
   }
 
   @override
   @failingTest
   void test_parseCascadeSection_paa_typeArguments() {
     super.test_parseCascadeSection_paa_typeArguments();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_paapaa() {
-    super.test_parseCascadeSection_paapaa();
-  }
-
-  @override
-  @failingTest
   void test_parseCascadeSection_paapaa_typeArgumentComments() {
     super.test_parseCascadeSection_paapaa_typeArgumentComments();
   }
 
   @override
   @failingTest
   void test_parseCascadeSection_paapaa_typeArguments() {
     super.test_parseCascadeSection_paapaa_typeArguments();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_pap() {
-    super.test_parseCascadeSection_pap();
-  }
-
-  @override
-  @failingTest
   void test_parseCascadeSection_pap_typeArgumentComments() {
     super.test_parseCascadeSection_pap_typeArgumentComments();
   }
 
   @override
   @failingTest
-  void test_parseCascadeSection_pap_typeArguments() {
-    super.test_parseCascadeSection_pap_typeArguments();
-  }
-
-  @override
-  @failingTest
   void test_parseConstExpression_instanceCreation() {
     super.test_parseConstExpression_instanceCreation();
   }
 
   @override
   @failingTest
   void test_parseConstExpression_listLiteral_typed_genericComment() {
     super.test_parseConstExpression_listLiteral_typed_genericComment();
   }
 
@@ skipping 445 matching lines @@
     return _parseExpression(code);
   }
 
   @override
   Expression parseBitwiseXorExpression(String code) {
     return _parseExpression(code);
   }
 
   @override
   Expression parseCascadeSection(String code) {
-    return _parseExpression('null$code');
+    var cascadeExpression = _parseExpression('null$code') as CascadeExpression;
+    return cascadeExpression.cascadeSections.single;
   }
 
   @override
   CompilationUnit parseCompilationUnit(String source,
       [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
     return _runParser(source, (parser) => parser.parseUnit, errorCodes)
         as CompilationUnit;
   }
 
   @override
@@ skipping 752 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();
   }
 }