Move testing.json and status files to more natural locations.

pkg/front_end/test/fasta/shaker_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.md file.
 
 /// Tests basic functionality of the API tree-shaker.
 ///
 /// Each input file is built and tree-shaken, then we check that the set of
 /// libraries, classes, and members that are retained match those declared in an
 /// expectations file.
 ///
@@ skipping 21 matching lines @@
 import 'package:front_end/src/fasta/translate_uri.dart' show TranslateUri;
 import 'package:front_end/src/fasta/util/relativize.dart' show relativizeUri;
 import 'package:kernel/ast.dart' show Program;
 import 'package:kernel/kernel.dart' show loadProgramFromBytes;
 import 'package:kernel/target/targets.dart' show TargetFlags;
 import 'package:kernel/target/vm_fasta.dart' show VmFastaTarget;
 import 'package:testing/testing.dart'
     show Chain, ChainContext, ExpectationSet, Result, Step, TestDescription;
 import 'testing/suite.dart';
 
-main(List<String> arguments) => runMe(arguments, createContext, "testing.json");
+main(List<String> arguments) =>
+    runMe(arguments, createContext, "../../testing.json");
 
 Future<TreeShakerContext> createContext(
     Chain suite, Map<String, String> environment) {
   return TreeShakerContext.create(environment);
 }
 
 /// Context used to run the tree-shaking test suite.
 class TreeShakerContext extends ChainContext {
   final TranslateUri uriTranslator;
   final Uri outlineUri;
@@ skipping 183 matching lines @@
           """
 Please create file ${expectedFile.path} with this content:
 $buffer""");
     }
   }
 }
 
 /// A special library used only to test the shaker. The suite above will
 /// tree-shake the contents of this library.
 const _specialLibraryPath = 'pkg/front_end/testcases/shaker/lib/lib.dart';