Add ancestor/descendant_and_self_slice.

Add a helper which returns ancestors/descendants together with the slice
itself.

Change-Id: I80d42c39fa8d1ce8bfc053cb446bc6fe95fe5b2a
diff --git a/Android.bp b/Android.bp
index 7bc9bd8..2d62393 100644
--- a/Android.bp
+++ b/Android.bp
@@ -13187,6 +13187,7 @@
         "src/trace_processor/perfetto_sql/stdlib/sched/time_in_state.sql",
         "src/trace_processor/perfetto_sql/stdlib/slices/cpu_time.sql",
         "src/trace_processor/perfetto_sql/stdlib/slices/flat_slices.sql",
+        "src/trace_processor/perfetto_sql/stdlib/slices/hierarchy.sql",
         "src/trace_processor/perfetto_sql/stdlib/slices/slices.sql",
         "src/trace_processor/perfetto_sql/stdlib/slices/with_context.sql",
         "src/trace_processor/perfetto_sql/stdlib/stack_trace/jit.sql",