Move kernel baseline tests to front_end.

pkg/front_end/testcases/top_level_accessors.dart.direct.expect

Index: pkg/front_end/testcases/top_level_accessors.dart.direct.expect
diff --git a/pkg/front_end/testcases/top_level_accessors.dart.direct.expect b/pkg/front_end/testcases/top_level_accessors.dart.direct.expect
new file mode 100644
index 0000000000000000000000000000000000000000..6d40e72b8046064835cf7c27b640f75836f8ba0b
--- /dev/null
+++ b/pkg/front_end/testcases/top_level_accessors.dart.direct.expect
@@ -0,0 +1,13 @@
+library top_level_accessors;
+import self as self;
+import "dart:core" as core;
+
+static set /* from pkg/front_end/testcases/top_level_accessors_part.dart */ exitCode(core::int code) → void {
+  core::print(code);
+}
+static get /* from pkg/front_end/testcases/top_level_accessors_part.dart */ exitCode() → core::int
+  return 0;
+static method /* from pkg/front_end/testcases/top_level_accessors_part.dart */ main() → dynamic {
+  self::exitCode = 42;
+  core::print(self::exitCode);
+}