Use backend targets to run Kernel transformations in Fasta

pkg/kernel/test/baseline_tester.dart

Index: pkg/kernel/test/baseline_tester.dart
diff --git a/pkg/kernel/test/baseline_tester.dart b/pkg/kernel/test/baseline_tester.dart
index c3a0b5a43050080dd2ada7a4dfd3d50127308256..8432cc56936d5a1e9f3da737fcdc5a18d3552cc4 100644
--- a/pkg/kernel/test/baseline_tester.dart
+++ b/pkg/kernel/test/baseline_tester.dart
@@ -26,7 +26,7 @@ abstract class TestTarget extends Target {
   Annotator get annotator => null;
 
   // Return a list of strings so that we can accumulate errors.
-  List<String> performModularTransformations(
+  List<String> performModularTransformationsOnProgram(
       CoreTypes coreTypes, Program program);
   List<String> performGlobalTransformations(
       CoreTypes coreTypes, Program program);
@@ -59,7 +59,8 @@ void runBaselineTests(String folderName, TestTarget target) {
         loader.loadProgram(dartPath, target: target);
         verifyProgram(program);
         var errors = <String>[];
-        errors.addAll(target.performModularTransformations(coreTypes, program));
+        errors.addAll(
+            target.performModularTransformationsOnProgram(coreTypes, program));
         verifyProgram(program);
         errors.addAll(target.performGlobalTransformations(coreTypes, program));
         verifyProgram(program);