patch 9.0.1753: can't move to last non-blank char

Problem: can't move to last non-blank char
Solution: Make g<end> behave like that

Make it possible to move to last non-blank char on a line

We can distinguish between g0 and g^ to move to the very first character
and the first non-blank char.

And while we can move to the last screen char, we cannot go to the last
non-blank screen char.

Since I think g$ is the more widely used and known movement command (and
g<end> is synonymous to it) change the behaviour of g<end> to move to
last non-screen char instead and don't have this be the same command as
the g$ command anymore.

If you want to keep the old behaviour, you can use:

```
nnoremap g<end> g$
```

Add a test to verify the behaviour.

closes: #12593

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_normal.vim b/src/testdir/test_normal.vim
index 31fbe77..92d1134 100644
--- a/src/testdir/test_normal.vim
+++ b/src/testdir/test_normal.vim
@@ -4104,4 +4104,22 @@
   let &mouse = save_mouse
 endfunc
 
+func Test_normal33_g_cmd_nonblank()
+  " Test that g$ goes to the last non-blank char and g<end> to the last
+  " visible column
+  20vnew
+  setlocal nowrap nonumber signcolumn=no
+  call setline(1, ['fooo   fooo         fooo   fooo         fooo   fooo         fooo   fooo        '])
+  exe "normal 0g\<end>"
+  call assert_equal(11, col('.'))
+  normal 0g$
+  call assert_equal(20, col('.'))
+  setlocal wrap
+  exe "normal 0g\<end>"
+  call assert_equal(11, col('.'))
+  normal 0g$
+  call assert_equal(20, col('.'))
+  bw!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab