patch 9.0.0702: incomplete testing cursor position with 'linebreak' set

Problem:    Incomplete testing cursor position after change with 'linebreak'
            set.
Solution:   Add a test and move test cases together. (closes #11313)
diff --git a/src/testdir/test_listlbr.vim b/src/testdir/test_listlbr.vim
index ace398b..4a43fea 100644
--- a/src/testdir/test_listlbr.vim
+++ b/src/testdir/test_listlbr.vim
@@ -134,22 +134,41 @@
   call s:close_windows()
 endfunc
 
+" Test that cursor is drawn at correct position after an operator when
+" 'linebreak' is enabled.
 func Test_linebreak_reset_restore()
   CheckScreendump
 
+  " f_wincol() calls validate_cursor()
   let lines =<< trim END
-      vim9script
-      &linebreak = true
-      &showcmd = true
-      &showmode = false
-      ('a'->repeat(&columns - 10) .. ' ' .. 'b'->repeat(10) .. ' c')->setline(1)
+    set linebreak showcmd noshowmode formatexpr=wincol()-wincol()
+    call setline(1, repeat('a', &columns - 10) .. ' bbbbbbbbbb c')
   END
   call writefile(lines, 'XlbrResetRestore', 'D')
   let buf = RunVimInTerminal('-S XlbrResetRestore', {'rows': 8})
 
-  call term_sendkeys(buf, '$v$s')
+  call term_sendkeys(buf, '$v$')
+  call WaitForAssert({-> assert_equal(13, term_getcursor(buf)[1])})
+  call term_sendkeys(buf, 'zo')
+  call WaitForAssert({-> assert_equal(12, term_getcursor(buf)[1])})
+
+  call term_sendkeys(buf, '$v$')
+  call WaitForAssert({-> assert_equal(13, term_getcursor(buf)[1])})
+  call term_sendkeys(buf, 'gq')
+  call WaitForAssert({-> assert_equal(12, term_getcursor(buf)[1])})
+
+  call term_sendkeys(buf, "$\<C-V>$")
+  call WaitForAssert({-> assert_equal(13, term_getcursor(buf)[1])})
+  call term_sendkeys(buf, 'I')
+  call WaitForAssert({-> assert_equal(12, term_getcursor(buf)[1])})
+
+  call term_sendkeys(buf, "\<Esc>$v$")
+  call WaitForAssert({-> assert_equal(13, term_getcursor(buf)[1])})
+  call term_sendkeys(buf, 's')
+  call WaitForAssert({-> assert_equal(12, term_getcursor(buf)[1])})
   call VerifyScreenDump(buf, 'Test_linebreak_reset_restore_1', {})
 
+  " clean up
   call term_sendkeys(buf, "\<Esc>")
   call StopVimInTerminal(buf)
 endfunc