runtime(indent-tests): Instrument timed "search*()" calls

The offered "tracer.vim" script can be used to measure and
record elapsed time for explicitly annotated "search*()"es,
set off with "VIM_INDENT_TEST_TRACE_(START|END)" comment
markers, in indent plugins.

related: #17116

Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/Filelist b/Filelist
index 4067df5..c5b3c4f 100644
--- a/Filelist
+++ b/Filelist
@@ -863,6 +863,7 @@
 		runtime/indent/testdir/*.vim \
 		runtime/indent/testdir/*.in \
 		runtime/indent/testdir/*.ok \
+		runtime/indent/testdir/tools/* \
 		runtime/ftplugin/*.vim \
 		runtime/ftplugin/logtalk.dict \
 		runtime/ftplugin/README.txt \