patch 8.0.1578: no test for :popup in terminal

Problem:    No test for :popup in terminal.
Solution:   Add a screen dump test.

src/testdir/dumps/Test_popup_command_01.dump

@@ -0,0 +1,20 @@
|o+0&#ffffff0|n|e| |t|w|o| |t|h|r|e@1| |f|o|u|r| |f|i|v|e| @51
|a|n|d| |o|n|e| |t|w|o| |X|t|h|r|e@1| |f|o|u|r| |f|i|v|e| @46
|o|n|e| |m|o|r|e| |t|w| +0#0000001#ffd7ff255|U|n|d|o| @12| +0#0000000#ffffff0@45
|~+0#4040ff13&| @9| +0#0000001#ffd7ff255@17| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|P|a|s|t|e| @11| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255@17| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |W|o|r|d| @5| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |S|e|n|t|e|n|c|e| @1| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |P|a|r|a|g|r|a|p|h| | +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |L|i|n|e| @5| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |B|l|o|c|k| @4| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |A|l@1| @6| +0#4040ff13#ffffff0@45
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|:+0#0000000&|p|o|p|u|p| |P|o|p|U|p| @34|:| @8> @17

src/testdir/dumps/Test_popup_command_02.dump

@@ -0,0 +1,20 @@
|o+0&#ffffff0|n|e| |t|w|o| |t|h|r|e@1| |f|o|u|r| |f|i|v|e| @51
|a|n|d| |o|n|e| |t|w|o| >X|t|h|r|e@1| |f|o|u|r| |f|i|v|e| @46
|o|n|e| |m|o|r|e| |t|w| +0#0000001#ffd7ff255|U|n|d|o| @12| +0#0000000#ffffff0@45
|~+0#4040ff13&| @9| +0#0000001#ffd7ff255@17| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#e0e0e08|P|a|s|t|e| @11| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255@17| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |W|o|r|d| @5| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |S|e|n|t|e|n|c|e| @1| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |P|a|r|a|g|r|a|p|h| | +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |L|i|n|e| @5| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |B|l|o|c|k| @4| +0#4040ff13#ffffff0@45
|~| @9| +0#0000001#ffd7ff255|S|e|l|e|c|t| |A|l@1| @6| +0#4040ff13#ffffff0@45
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|:+0#0000000&|p|o|p|u|p| |P|o|p|U|p| @34|:| @8| @17

src/testdir/dumps/Test_popup_command_03.dump

@@ -0,0 +1,20 @@
|o+0&#ffffff0|n|e| |t|w|o| |t|h|r|e@1| |f|o|u|r| |f|i|v|e| @51
|a|n|d| |o|n|e| |t|w|o| |X+0&#e0e0e08|t|h|r|e@1> +0&#ffffff0|f|o|u|r| |f|i|v|e| @46
|o|n|e| |m|o|r|e| |t|w|o| |t|h|r|e@1| |f|o|u|r| |f|i|v|e| @46
|~+0#4040ff13&| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|-+2#0000000&@1| |V|I|S|U|A|L| |-@1| +0&&@34|7| @8|2|,|1|9| @9|A|l@1| 

src/testdir/test_popup.vim

@@ -786,4 +786,33 @@ func Test_popup_position()
  call delete('Xtest')
endfunc

func Test_popup_command()
  if !CanRunVimInTerminal() || !has('menu')
    return
  endif

  call writefile([
	\ 'one two three four five',
	\ 'and one two Xthree four five',
	\ 'one more two three four five',
	\ ], 'Xtest')
  let buf = RunVimInTerminal('Xtest', {})
  call term_sendkeys(buf, ":source $VIMRUNTIME/menu.vim\<CR>")
  call term_sendkeys(buf, "/X\<CR>:popup PopUp\<CR>")
  call VerifyScreenDump(buf, 'Test_popup_command_01', {})

  " Select a word
  call term_sendkeys(buf, "jj")
  call VerifyScreenDump(buf, 'Test_popup_command_02', {})

  " Select a word
  call term_sendkeys(buf, "j\<CR>")
  call VerifyScreenDump(buf, 'Test_popup_command_03', {})

  call term_sendkeys(buf, "\<Esc>")
  call StopVimInTerminal(buf)
  call delete('Xtest')
endfunc


" vim: shiftwidth=2 sts=2 expandtab

src/version.c

@@ -766,6 +766,8 @@ static char *(features[]) =

static int included_patches[] =
{   /* Add new patch number below this line */
/**/
    1578,
/**/
    1577,
/**/