patch 9.1.0578: no tests for :Tohtml

Problem:  no tests for :Tohtml
Solution: Add two basic tests (Yinzuo Jiang)

closes: #15240

Signed-off-by: Yinzuo Jiang <jiangyinzuo@foxmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/Filelist b/Filelist
index 30c8208..5e24dbb 100644
--- a/Filelist
+++ b/Filelist
@@ -214,6 +214,7 @@
 		src/testdir/pyxfile/*.py \
 		src/testdir/dumps/*.dump \
 		src/testdir/dumps/*.vim \
+		src/testdir/samples/*.html \
 		src/testdir/samples/*.txt \
 		src/testdir/samples/*.vim \
 		src/testdir/samples/test000 \