Handle top-level getters and setters in parts.

pkg/front_end/test/fasta/top_level_accessors.dart.direct.expect

Index: pkg/front_end/test/fasta/top_level_accessors.dart.direct.expect
diff --git a/pkg/front_end/test/fasta/top_level_accessors.dart.direct.expect b/pkg/front_end/test/fasta/top_level_accessors.dart.direct.expect
new file mode 100644
index 0000000000000000000000000000000000000000..d0b45bc061a816aa670ed3b61066b42d86f73e47
--- /dev/null
+++ b/pkg/front_end/test/fasta/top_level_accessors.dart.direct.expect
@@ -0,0 +1,13 @@
+library top_level_accessors;
+import self as self;
+import "dart:core" as core;
+
+static get /* from pkg/front_end/test/fasta/top_level_accessors_part.dart */ exitCode() → core::int
+  return 0;
+static set /* from pkg/front_end/test/fasta/top_level_accessors_part.dart */ exitCode(core::int code) → void {
+  core::print(code);
+}
+static method /* from pkg/front_end/test/fasta/top_level_accessors_part.dart */ main() → dynamic {
+  self::exitCode = 42;
+  core::print(self::exitCode);
+}