patch 8.2.0884: searchcount() test fails on slower systems

Problem:    Searchcount() test fails on slower systems.
Solution:   Set a longer timeout.
diff --git a/src/testdir/test_search_stat.vim b/src/testdir/test_search_stat.vim
index 7c2a195..de73051 100644
--- a/src/testdir/test_search_stat.vim
+++ b/src/testdir/test_search_stat.vim
@@ -87,10 +87,10 @@
     \ searchcount(#{recompute: 0}))
   call assert_equal(
     \ #{current: 272, exact_match: 1, total: 280, incomplete: 0, maxcount: 0},
-    \ searchcount(#{recompute: v:true, maxcount: 0}))
+    \ searchcount(#{recompute: v:true, maxcount: 0, timeout: 200}))
   call assert_equal(
     \ #{current: 1, exact_match: 1, total: 280, incomplete: 0, maxcount: 0},
-    \ searchcount(#{recompute: 1, maxcount: 0, pos: [1, 1, 0]}))
+    \ searchcount(#{recompute: 1, maxcount: 0, pos: [1, 1, 0], timeout: 200}))
   call cursor(line('$'), 1)
   let g:a = execute(':unsilent :norm! n')
   let stat = 'W \[1/>99\]'
@@ -100,10 +100,10 @@
     \ searchcount(#{recompute: 0}))
   call assert_equal(
     \ #{current: 1, exact_match: 1, total: 280, incomplete: 0, maxcount: 0},
-    \ searchcount(#{recompute: 1, maxcount: 0}))
+    \ searchcount(#{recompute: 1, maxcount: 0, timeout: 200}))
   call assert_equal(
     \ #{current: 271, exact_match: 1, total: 280, incomplete: 0, maxcount: 0},
-    \ searchcount(#{recompute: 1, maxcount: 0, pos: [line('$')-2, 1, 0]}))
+    \ searchcount(#{recompute: 1, maxcount: 0, pos: [line('$')-2, 1, 0], timeout: 200}))
 
   " Many matches
   call cursor(1, 1)