Read SDK and patches from a JSON file.

pkg/kernel/test/interpreter/suite.dart

Index: pkg/kernel/test/interpreter/suite.dart
diff --git a/pkg/kernel/test/interpreter/suite.dart b/pkg/kernel/test/interpreter/suite.dart
index b0e9f20d564e166df979f0e7c7807595ef2ab772..5ad53aac824317edc178270d42282f40eae039d8 100644
--- a/pkg/kernel/test/interpreter/suite.dart
+++ b/pkg/kernel/test/interpreter/suite.dart
@@ -8,10 +8,14 @@ import 'dart:async' show Future;
 
 import 'dart:io' show File;
 
-import 'package:front_end/physical_file_system.dart';
+import 'package:front_end/physical_file_system.dart' show PhysicalFileSystem;
+
 import 'package:testing/testing.dart'
     show Chain, ChainContext, Result, Step, TestDescription, runMe;
 
+import 'package:front_end/src/fasta/testing/patched_sdk_location.dart'
+    show computePatchedSdk;
+
 import 'package:kernel/ast.dart' show Program, Library;
 
 import 'package:front_end/src/fasta/testing/kernel_chain.dart' show runDiff;
@@ -58,10 +62,11 @@ class InterpreterContext extends ChainContext {
 
   static Future<InterpreterContext> create(
       Chain suite, Map<String, String> environment) async {
+    Uri sdk = await computePatchedSdk();
     Uri packages = Uri.base.resolve(".packages");
     bool strongMode = environment.containsKey(STRONG_MODE);
-    TranslateUri uriTranslator =
-        await TranslateUri.parse(PhysicalFileSystem.instance, packages);
+    TranslateUri uriTranslator = await TranslateUri
+        .parse(PhysicalFileSystem.instance, sdk, packages: packages);
     return new InterpreterContext(strongMode, uriTranslator);
   }
 }