Use kernel transformation and VmTarget.

pkg/front_end/lib/src/fasta/testing/suite.dart

Index: pkg/front_end/lib/src/fasta/testing/suite.dart
diff --git a/pkg/front_end/lib/src/fasta/testing/suite.dart b/pkg/front_end/lib/src/fasta/testing/suite.dart
index c651cb85577180b897cecb4fb2907dd6b401ea5f..022b75169acba3ef3da0477d873a2668bdcea07c 100644
--- a/pkg/front_end/lib/src/fasta/testing/suite.dart
+++ b/pkg/front_end/lib/src/fasta/testing/suite.dart
@@ -126,16 +126,17 @@ class FeContext extends TestContext {
           "vm", new TargetFlags(strongMode: options.strongMode));
       Program program = loader.loadProgram(
           Uri.base.resolve("pkg/fasta/test/platform.dart"), target: target);
-      target.performModularTransformations(program);
-      target.performGlobalTransformations(program);
       if (loader.errors.isNotEmpty) {
         throw loader.errors.join("\n");
       }
       Library mainLibrary = program.mainMethod.enclosingLibrary;
       program.uriToSource.remove(mainLibrary.fileUri);
-      return new Program(
+      program = new Program(
           program.libraries.where((Library l) => l != mainLibrary).toList(),
           program.uriToSource);
+      target.performModularTransformations(program);
+      target.performGlobalTransformations(program);
+      return program;
     });
   }