vim-patch:partial:9.0.0737: Lisp word only recognized when a space follows

Problem:    Lisp word only recognized when a space follows.
Solution:   Also match a word at the end of a line.  Rename the test.  Use a
            compiled function to avoid backslashes.
d26c5805bc

Keep the old Test_lisp_indent().

src/nvim/indent.c

@@ -1138,7 +1138,7 @@ static int lisp_match(char_u *p)
     (void)copy_option_part(&word, (char *)buf, LSIZE, ",");
     len = (int)STRLEN(buf);
 
-    if ((STRNCMP(buf, p, len) == 0) && (p[len] == ' ')) {
+    if ((STRNCMP(buf, p, len) == 0) && ascii_iswhite_or_nul(p[len])) {
       return true;
     }
   }

src/nvim/testdir/test_alot.vim

@@ -15,7 +15,6 @@ source test_fnamemodify.vim
 source test_ga.vim
 source test_glob2regpat.vim
 source test_global.vim
-source test_lispwords.vim
 source test_move.vim
 source test_put.vim
 source test_reltime.vim

src/nvim/testdir/test_lispindent.vim

@@ -86,6 +86,11 @@ func Test_lisp_indent()
   set nolisp
 endfunc
 
+func Test_lispindent_negative()
+  " in legacy script there is no error
+  call assert_equal(-1, lispindent(-1))
+endfunc
+
 func Test_lisp_indent_works()
   " This was reading beyond the end of the line
   new