functests: Replace execute with either command or feed_command

Hope this will make people using feed_command less likely: this hides bugs.
Already found at least two:

1. msgpackparse() will show internal error: hash_add() in case of duplicate
   keys, though it will still work correctly. Currently silenced.
2. ttimeoutlen was spelled incorrectly, resulting in option not being set when
   expected. Test was still functioning somehow though. Currently fixed.

1 files changed, 11 insertions, 5 deletions

diff --git a/test/functional/legacy/search_mbyte_spec.lua b/test/functional/legacy/search_mbyte_spec.lua
index a5a5822a45..c3f9e1a947 100644
--- a/test/functional/legacy/search_mbyte_spec.lua
+++ b/test/functional/legacy/search_mbyte_spec.lua
@@ -1,6 +1,11 @@
 local helpers = require('test.functional.helpers')(after_each)
+
+local feed = helpers.feed
+local wait = helpers.wait
+local clear = helpers.clear
 local insert = helpers.insert
-local clear, execute, expect = helpers.clear, helpers.execute, helpers.expect
+local expect = helpers.expect
+local command = helpers.command
 
 describe('search_mbyte', function()
   before_each(clear)
@@ -8,17 +13,18 @@ describe('search_mbyte', function()
   it("search('multi-byte char', 'bce')", function()
     insert([=[
       Results:
-      
+
       Test bce:
       Ａ]=])
+    wait()
 
-    execute('/^Test bce:/+1')
-    execute([[$put =search('Ａ', 'bce', line('.'))]])
+    command('/^Test bce:/+1')
+    command([[$put =search('Ａ', 'bce', line('.'))]])
 
     -- Assert buffer contents.
     expect([=[
       Results:
-      
+
       Test bce:
       Ａ
       4]=])