Read SDK and patches from a JSON file.

pkg/front_end/test/fasta/testing/suite.dart

 // Copyright (c) 2016, 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.
 
 library fasta.testing.suite;
 
 import 'dart:async' show Future;
 
 import 'dart:io' show File;
 
 import 'dart:convert' show JSON;
 
-import 'package:front_end/physical_file_system.dart';
+import 'package:front_end/physical_file_system.dart' show PhysicalFileSystem;
+
 import 'package:front_end/src/fasta/testing/validating_instrumentation.dart'
     show ValidatingInstrumentation;
 
-import 'package:front_end/src/fasta/testing/patched_sdk_location.dart';
+import 'package:front_end/src/fasta/testing/patched_sdk_location.dart'
+    show computeDartVm, computePatchedSdk;
 
 import 'package:kernel/ast.dart' show Program;
 
 import 'package:testing/testing.dart'
     show
         Chain,
         ChainContext,
         ExpectationSet,
         Result,
         Step,
@@ skipping 106 matching lines @@
     // cloning it.
     // TODO(sigmund): investigate alternatives to this approach.
     return loadProgramFromBytes(outlineBytes);
   }
 
   static Future<FastaContext> create(
       Chain suite, Map<String, String> environment) async {
     Uri sdk = await computePatchedSdk();
     Uri vm = computeDartVm(sdk);
     Uri packages = Uri.base.resolve(".packages");
-    TranslateUri uriTranslator =
-        await TranslateUri.parse(PhysicalFileSystem.instance, packages);
+    TranslateUri uriTranslator = await TranslateUri
+        .parse(PhysicalFileSystem.instance, sdk, packages: packages);
     bool strongMode = environment.containsKey(STRONG_MODE);
     bool updateExpectations = environment["updateExpectations"] == "true";
     bool updateComments = environment["updateComments"] == "true";
     bool skipVm = environment["skipVm"] == "true";
     String astKindString = environment[AST_KIND_INDEX];
     AstKind astKind =
         astKindString == null ? null : AstKind.values[int.parse(astKindString)];
     return new FastaContext(
         vm,
         strongMode,
@@ skipping 82 matching lines @@
             return fail(null, instrumentation.problemsAsString);
           }
         }
       }
     } on InputError catch (e, s) {
       return fail(null, e.error, s);
     }
     return pass(p);
   }
 }