vim-patch:9.0.0681: "<<<" shows for 'smoothscroll' even when 'showbreak is set

Problem:    "<<<" shows for 'smoothscroll' even when 'showbreak is set.
Solution:   When 'showbreak' is set do not display "<<<".

0937b9fb24

Co-authored-by: Bram Moolenaar <Bram@vim.org>

src/nvim/grid.c

@@ -22,7 +22,7 @@
 #include "nvim/highlight.h"
 #include "nvim/log.h"
 #include "nvim/message.h"
-#include "nvim/option_defs.h"
+#include "nvim/option.h"
 #include "nvim/types.h"
 #include "nvim/ui.h"
 #include "nvim/vim.h"
@@ -530,8 +530,9 @@ void grid_put_linebuf(ScreenGrid *grid, int row, int coloff, int endcol, int cle
   max_off_from = linebuf_size;
   max_off_to = grid->line_offset[row] + (size_t)grid->cols;
 
-  if (topline && wp->w_skipcol > 0) {
-    // Take care of putting "<<<" on the first line for 'smoothscroll'.
+  if (topline && wp->w_skipcol > 0 && *get_showbreak_value(wp) == NUL) {
+    // Take care of putting "<<<" on the first line for 'smoothscroll'
+    // when 'showbreak' is not set.
     for (int i = 0; i < 3; i++) {
       schar_from_ascii(linebuf_char[i], '<');
       linebuf_attr[i] = HL_ATTR(HLF_AT);

test/old/testdir/test_breakindent.vim

@@ -700,7 +700,7 @@ func Test_breakindent19_sbr_nextpage()
   norm! 5gj
   let lines = s:screen_lines(1, 20)
   let expect = [
-	\ "<<<aaaaaaaaaaaaaaaaa",
+	\ ">aaaaaaaaaaaaaaaaaaa",
 	\ ">aaaaaaaaaaaaaaaaaaa",
 	\ ">aaaaaaaaaaaaaaaaaaa",
 	\ ]

test/old/testdir/test_listlbr_utf8.vim

@@ -167,7 +167,7 @@ func Test_visual_block_and_selection_exclusive()
   exe "norm! $3B\<C-v>eAx\<Esc>"
   let lines = s:screen_lines([1, 10], winwidth(0))
   let expect = [
-\ "<<<obar foobar      ",
+\ "+foobar foobar      ",
 \ "+foobar foobar      ",
 \ "+foobar foobar      ",
 \ "+foobar foobar      ",