patch 8.2.3102: test for crash fix does not fail without the fix

Problem:    Test for crash fix does not fail without the fix.
Solution:   Adjust the test sequence. (closes #8506)

Author: brammool

src/testdir/test_swap.vim

@@ -373,18 +373,22 @@ func Test_swap_prompt_splitwin()
   call WaitForAssert({-> assert_match('^1$', term_getline(buf, 20))})
   call StopVimInTerminal(buf)
 
-  " This caused Vim to crash when typing "q".
-  " TODO: it does not actually reproduce the crash.
-  call writefile(['au BufAdd * set virtualedit=all'], 'Xvimrc')
-
-  let buf = RunVimInTerminal('-u Xvimrc Xfile1', {'rows': 20, 'wait_for_ruler': 0})
-  call TermWait(buf)
-  call WaitForAssert({-> assert_match('^\[O\]pen Read-Only, (E)dit anyway, (R)ecover, (Q)uit, (A)bort:', term_getline(buf, 20))})
+  " This caused Vim to crash when typing "q" at the swap file prompt.
+  let buf = RunVimInTerminal('-c "au bufadd * let foo_w = wincol()"', {'rows': 18})
+  call term_sendkeys(buf, ":e Xfile1\<CR>")
+  call WaitForAssert({-> assert_match('More', term_getline(buf, 18))})
+  call term_sendkeys(buf, " ")
+  call WaitForAssert({-> assert_match('^\[O\]pen Read-Only, (E)dit anyway, (R)ecover, (Q)uit, (A)bort:', term_getline(buf, 18))})
   call term_sendkeys(buf, "q")
+  call TermWait(buf)
+  " check that Vim is still running
+  call term_sendkeys(buf, ":echo 'hello'\<CR>")
+  call WaitForAssert({-> assert_match('^hello', term_getline(buf, 18))})
+  call term_sendkeys(buf, ":%bwipe!\<CR>")
+  call StopVimInTerminal(buf)
 
   %bwipe!
   call delete('Xfile1')
-  call delete('Xvimrc')
 endfunc
 
 func Test_swap_symlink()

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3102,
 /**/
     3101,
 /**/