Rename parser_test_fasta.dart to parser_fasta_test.dart.

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:front_end/src/fasta/analyzer/ast_builder.dart';
 import 'package:front_end/src/fasta/analyzer/element_store.dart';
 import 'package:front_end/src/fasta/builder/scope.dart';
@@ skipping 289 matching lines @@
  * [BuilderProxy].
  */
 class ScopeProxy implements Scope {
   final _locals = <String, Builder>{};
 
   Builder lookup(String name) =>
       _locals.putIfAbsent(name, () => new BuilderProxy());
 
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }