Move kernel baseline tests to front_end.

pkg/front_end/lib/src/fasta/kernel/kernel_target.dart

Index: pkg/front_end/lib/src/fasta/kernel/kernel_target.dart
diff --git a/pkg/front_end/lib/src/fasta/kernel/kernel_target.dart b/pkg/front_end/lib/src/fasta/kernel/kernel_target.dart
index 2abba433b4e3839b276cc50f741d50512a0fd145..7eb8f115e98718c72e2685348670721a175c2713 100644
--- a/pkg/front_end/lib/src/fasta/kernel/kernel_target.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/kernel_target.dart
@@ -92,6 +92,8 @@ import 'kernel_builder.dart'
 import 'verifier.dart' show verifyProgram;
 
 class KernelTarget extends TargetImplementation {
+  final bool strongMode;
+
   final DillTarget dillTarget;
 
   /// Shared with [CompilerContext].
@@ -105,7 +107,8 @@ class KernelTarget extends TargetImplementation {
   final TypeBuilder dynamicType =
       new KernelNamedTypeBuilder("dynamic", null, -1, null);
 
-  KernelTarget(DillTarget dillTarget, TranslateUri uriTranslator,
+  KernelTarget(
+      DillTarget dillTarget, TranslateUri uriTranslator, this.strongMode,
       [Map<String, Source> uriToSource])
       : dillTarget = dillTarget,
         uriToSource = uriToSource ?? CompilerContext.current.uriToSource,