Tweak public APIs and use them in patch_sdk, dart2js, and kernel-service

pkg/front_end/test/subpackage_relationships_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 'dart:async';
 import 'dart:io';
 
 import 'package:front_end/compiler_options.dart';
 import 'package:front_end/dependency_grapher.dart';
 import 'package:path/path.dart' as pathos;
@@ skipping 23 matching lines @@
 ///
 /// Each listed directory is considered a subpackage.  Each package contains all
 /// of its descendant files that are not in a more deeply nested subpackage.
 ///
 /// TODO(paulberry): stuff in lib/src shouldn't depend on lib; lib should just
 /// re-export stuff in lib/src.
 final subpackageRules = {
   'lib': new SubpackageRules(allowedDependencies: [
     'lib/src',
     'lib/src/base',
-    'lib/src/fasta',
-    'lib/src/fasta/dill',
-    'lib/src/fasta/kernel',
-    'lib/src/incremental'
+    'lib/src/incremental',
   ]),
   'lib/src': new SubpackageRules(allowedDependencies: [
     'lib',
     'lib/src/base',
     'lib/src/fasta',
     "lib/src/fasta/dill",
     "lib/src/fasta/kernel",
     'lib/src/fasta/source',
     'lib/src/incremental',
   ]),
   'lib/src/base': new SubpackageRules(allowedDependencies: [
     'lib',
     'lib/src',
     'lib/src/fasta',
     'lib/src/incremental'
   ]),
   'lib/src/codegen': new SubpackageRules(),
   'lib/src/fasta': new SubpackageRules(allowedDependencies: [
     'lib',
+    'lib/src',
     'lib/src/fasta/builder',
     'lib/src/fasta/dill',
     'lib/src/fasta/kernel',
     'lib/src/fasta/parser',
     'lib/src/fasta/scanner',
     'lib/src/fasta/testing',
     'lib/src/fasta/util',
     'lib/src/scanner',
   ]),
   'lib/src/fasta/builder': new SubpackageRules(allowedDependencies: [
@@ skipping 38 matching lines @@
     'lib/src/base',
     'lib/src/fasta/builder',
     'lib/src/fasta/dill',
     'lib/src/fasta/kernel',
     'lib/src/fasta/parser',
     'lib/src/fasta/type_inference',
     'lib/src/fasta/util',
     'lib/src/scanner',
   ]),
   'lib/src/fasta/testing': new SubpackageRules(allowedDependencies: [
+    'lib',
     'lib/src/fasta',
     'lib/src/base',
     'lib/src/fasta/kernel',
     'lib/src/fasta/scanner',
     'lib/src/scanner',
   ]),
   'lib/src/fasta/type_inference': new SubpackageRules(allowedDependencies: [
     'lib/src',
     'lib/src/base',
     'lib/src/fasta',
@@ skipping 11 matching lines @@
   ]),
   'lib/src/scanner': new SubpackageRules(allowedDependencies: [
     'lib/src/base',
     // For error codes.
     'lib/src/fasta',
     // fasta scanner produces analyzer scanner tokens
     'lib/src/fasta/scanner',
   ]),
   'lib/src/testing': new SubpackageRules(allowedDependencies: [
     'lib',
+    'lib/src/fasta/testing',
   ]),
 };
 
 /// Rules for what a subpackage may depend directly on.
 class SubpackageRules {
   /// Indicates whether dart files may exist in subdirectories of this
   /// subpackage.
   ///
   /// If `false`, any subdirectory of this subpackage must be a separate
   /// subpackage.
@@ skipping 148 matching lines @@
       if (subpackageRules[subpackage].allowSubdirs) {
         subpackageRules[subpackage].actuallyHasSubdirs = true;
       } else {
         problem('Uri $src is in a subfolder of $subpackage, but that '
             'subpackage does not allow dart files in subdirectories.');
       }
     }
     return subpackage;
   }
 }