Switch FE to use the libraries.json format.

pkg/front_end/lib/incremental_kernel_generator.dart

Index: pkg/front_end/lib/incremental_kernel_generator.dart
diff --git a/pkg/front_end/lib/incremental_kernel_generator.dart b/pkg/front_end/lib/incremental_kernel_generator.dart
index 9d52c2188454ffd667f934d7f006ece0d1fd35af..93e88ee60ed5a71e80e0a8deb487779be3eef464 100644
--- a/pkg/front_end/lib/incremental_kernel_generator.dart
+++ b/pkg/front_end/lib/incremental_kernel_generator.dart
@@ -6,6 +6,7 @@ import 'dart:async';
 
 import 'package:front_end/src/base/processed_options.dart';
 import 'package:front_end/src/incremental_kernel_generator_impl.dart';
+import 'package:front_end/src/fasta/compiler_context.dart';
 import 'package:kernel/kernel.dart';
 
 import 'compiler_options.dart';
@@ -100,9 +101,11 @@ abstract class IncrementalKernelGenerator {
       CompilerOptions options, Uri entryPoint,
       {WatchUsedFilesFn watch}) async {
     var processedOptions = new ProcessedOptions(options, false, [entryPoint]);
-    var uriTranslator = await processedOptions.getUriTranslator();
-    return new IncrementalKernelGeneratorImpl(
-        processedOptions, uriTranslator, entryPoint,
-        watch: watch);
+    return await CompilerContext.runWithOptions(processedOptions, (_) async {
+      var uriTranslator = await processedOptions.getUriTranslator();
+      return new IncrementalKernelGeneratorImpl(
+          processedOptions, uriTranslator, entryPoint,
+          watch: watch);
+    });
   }
 }