Use count expectation so `all` finder will wait (patience)

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/34435

Address flakey specs

spec/features/issues/filtered_search/recent_searches_spec.rb

@@ -27,9 +27,8 @@ describe 'Recent searches', :js do
     input_filtered_search('foo', submit: true)
     input_filtered_search('bar', submit: true)
 
-    items = all('.filtered-search-history-dropdown-item', visible: false)
+    items = all('.filtered-search-history-dropdown-item', visible: false, count: 2)
 
-    expect(items.count).to eq(2)
     expect(items[0].text).to eq('bar')
     expect(items[1].text).to eq('foo')
   end
@@ -38,9 +37,8 @@ describe 'Recent searches', :js do
     visit project_issues_path(project_1, label_name: 'foo', search: 'bar')
     visit project_issues_path(project_1, label_name: 'qux', search: 'garply')
 
-    items = all('.filtered-search-history-dropdown-item', visible: false)
+    items = all('.filtered-search-history-dropdown-item', visible: false, count: 2)
 
-    expect(items.count).to eq(2)
     expect(items[0].text).to eq('label:~qux garply')
     expect(items[1].text).to eq('label:~foo bar')
   end
@@ -50,9 +48,8 @@ describe 'Recent searches', :js do
 
     visit project_issues_path(project_1, search: 'foo')
 
-    items = all('.filtered-search-history-dropdown-item', visible: false)
+    items = all('.filtered-search-history-dropdown-item', visible: false, count: 3)
 
-    expect(items.count).to eq(3)
     expect(items[0].text).to eq('foo')
     expect(items[1].text).to eq('saved1')
     expect(items[2].text).to eq('saved2')
@@ -69,9 +66,8 @@ describe 'Recent searches', :js do
     input_filtered_search('more', submit: true)
     input_filtered_search('things', submit: true)
 
-    items = all('.filtered-search-history-dropdown-item', visible: false)
+    items = all('.filtered-search-history-dropdown-item', visible: false, count: 2)
 
-    expect(items.count).to eq(2)
     expect(items[0].text).to eq('things')
     expect(items[1].text).to eq('more')
   end
@@ -80,7 +76,7 @@ describe 'Recent searches', :js do
     set_recent_searches(project_1_local_storage_key, '["foo", "bar"]')
     visit project_issues_path(project_1)
 
-    all('.filtered-search-history-dropdown-item', visible: false)[0].trigger('click')
+    all('.filtered-search-history-dropdown-item', visible: false, count: 2)[0].trigger('click')
     wait_for_filtered_search('foo')
 
     expect(find('.filtered-search').value.strip).to eq('foo')
@@ -90,12 +86,10 @@ describe 'Recent searches', :js do
     set_recent_searches(project_1_local_storage_key, '["foo"]')
     visit project_issues_path(project_1)
 
-    items_before = all('.filtered-search-history-dropdown-item', visible: false)
-
-    expect(items_before.count).to eq(1)
+    all('.filtered-search-history-dropdown-item', visible: false, count: 1)
 
     find('.filtered-search-history-clear-button', visible: false).trigger('click')
-    items_after = all('.filtered-search-history-dropdown-item', visible: false)
+    items_after = all('.filtered-search-history-dropdown-item', visible: false, count: 0)
 
     expect(items_after.count).to eq(0)
   end