Update fasta tests to use the new transformation API

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 3968462af7460d122871f034d84ab4b03d984cbc..045d01bacfff665be459679ebb38f81aa62dc527 100644
--- a/pkg/front_end/lib/src/fasta/testing/suite.dart
+++ b/pkg/front_end/lib/src/fasta/testing/suite.dart
@@ -126,7 +126,8 @@ 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.transformProgram(program);
+      target.performModularTransformations(program);
+      target.performGlobalTransformations(program);
       if (loader.errors.isNotEmpty) {
         throw loader.errors.join("\n");
       }