legacy tests: migrate test26

src/nvim/testdir/test26.in

@@ -1,44 +0,0 @@
-Test for :execute, :while and :if
-
-STARTTEST
-:so small.vim
-mt:let i = 0
-:while i < 12
-:  let i = i + 1
-:  if has("ebcdic")
-:    execute "normal o" . i . "\047"
-:  else
-:    execute "normal o" . i . "\033"
-:  endif
-:  if i % 2
-:    normal Ax
-:    if i == 9
-:      break
-:    endif
-:    if i == 5
-:      continue
-:    else
-:      let j = 9
-:      while j > 0
-:        if has("ebcdic")
-:          execute "normal" j . "a" . j . "\x27"
-:        else
-:          execute "normal" j . "a" . j . "\x1b"
-:        endif
-:        let j = j - 1
-:      endwhile
-:    endif
-:  endif
-:  if i == 9
-:    if has("ebcdic")
-:      execute "normal Az\047"
-:    else
-:      execute "normal Az\033"
-:    endif
-:  endif
-:endwhile
-:unlet i j
-:'t,$w! test.out
-:qa!
-ENDTEST
-

src/nvim/testdir/test26.ok

@@ -1,10 +0,0 @@
-
-1x999999999888888887777777666666555554444333221
-2
-3x999999999888888887777777666666555554444333221
-4
-5x
-6
-7x999999999888888887777777666666555554444333221
-8
-9x