patch 9.0.1802: Multiline regex with Visual selection fails with virtual text

Problem:  Multiline regex with Visual selection fails when Visual
          selection contains virtual text after last char.
Solution: Only include virtual text after last char when getting full
          line length.

closes: #12908

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>

src/charset.c

@@ -809,7 +809,7 @@ win_linetabsize_cts(chartabsize_T *cts, colnr_T len)
 	cts->cts_vcol += win_lbr_chartabsize(cts, NULL);
 #ifdef FEAT_PROP_POPUP
     // check for a virtual text at the end of a line or on an empty line
-    if (cts->cts_has_prop_with_text && *cts->cts_ptr == NUL)
+    if (len == MAXCOL && cts->cts_has_prop_with_text && *cts->cts_ptr == NUL)
     {
 	(void)win_lbr_chartabsize(cts, NULL);
 	cts->cts_vcol += cts->cts_cur_text_width;
@@ -1196,8 +1196,7 @@ win_lbr_chartabsize(
 		       || (tp->tp_col == MAXCOL
 			   && ((tp->tp_flags & TP_FLAG_ALIGN_ABOVE)
 				? col == 0
-				: s[0] == NUL
+				: s[0] == NUL && cts->cts_with_trailing)))
-						  && cts->cts_with_trailing)))
 		    && -tp->tp_id - 1 < gap->ga_len)
 	    {
 		char_u *p = ((char_u **)gap->ga_data)[-tp->tp_id - 1];

src/testdir/dumps/Test_prop_with_text_empty_line_6.dump

@@ -0,0 +1,8 @@
+|X+0&#ffff4012@59
+|a+0&#e0e0e08@1>a+0&#ffffff0| @56
+|X+0&#ffff4012@59
+@1| +0&#ffffff0@58
+|b+0&#e0e0e08@2|b+0&#ffffff0@2| @53
+|~+0#4040ff13&| @58
+|~| @58
+|-+2#0000000&@1| |V|I|S|U|A|L| |B|L|O|C|K| |-@1| +0&&@13|3|x|3| @6|2|,|3| @10|A|l@1| 

src/testdir/dumps/Test_prop_with_text_empty_line_7.dump

@@ -0,0 +1,8 @@
+|X+0&#ffff4012@59
+>a+0&#ffffff0@2| @56
+|X+0&#ffff4012@59
+@1| +0&#ffffff0@58
+|b@5| @53
+|~+0#4040ff13&| @58
+|~| @58
+|s+0#e000002&|e|a|r|c|h| |h|i|t| |B|O|T|.@2|t|i|n|u|i|n|g| |a|t| |T|O|P| +0#0000000&@10|2|,|1| @10|A|l@1| 

src/testdir/dumps/Test_prop_with_text_empty_line_8.dump

@@ -0,0 +1,8 @@
+|X+0&#ffff4012@59
+|a+0&#ffffff0@2| @56
+|c>X+0&#ffff4012@58
+@2| +0&#ffffff0@57
+|b@5| @53
+|~+0#4040ff13&| @58
+|~| @58
+|-+2#0000000&@1| |I|N|S|E|R|T| |-@1| +0&&@29|3|,|2| @10|A|l@1| 

src/testdir/dumps/Test_prop_with_text_empty_line_9.dump

@@ -0,0 +1,8 @@
+|X+0&#ffff4012@59
+>a+0&#ffffff0@2| @56
+|c|X+0&#ffff4012@58
+@2| +0&#ffffff0@57
+|b@5| @53
+|~+0#4040ff13&| @58
+|~| @58
+|s+0#e000002&|e|a|r|c|h| |h|i|t| |B|O|T|.@2|t|i|n|u|i|n|g| |a|t| |T|O|P| +0#0000000&@10|2|,|1| @10|A|l@1| 

src/testdir/test_textprop.vim

@@ -3235,6 +3235,14 @@ func Test_props_with_text_empty_line()
   call VerifyScreenDump(buf, 'Test_prop_with_text_empty_line_4', {})
   call term_sendkeys(buf, "j")
   call VerifyScreenDump(buf, 'Test_prop_with_text_empty_line_5', {})
+  call term_sendkeys(buf, "0\<C-V>2l2k")
+  call VerifyScreenDump(buf, 'Test_prop_with_text_empty_line_6', {})
+  call term_sendkeys(buf, "\<Esc>/aaa\\n\\%V\<CR>")
+  call VerifyScreenDump(buf, 'Test_prop_with_text_empty_line_7', {})
+  call term_sendkeys(buf, "3ggic")
+  call VerifyScreenDump(buf, 'Test_prop_with_text_empty_line_8', {})
+  call term_sendkeys(buf, "\<Esc>/aaa\\nc\\%V\<CR>")
+  call VerifyScreenDump(buf, 'Test_prop_with_text_empty_line_9', {})
 
   call StopVimInTerminal(buf)
 endfunc

src/version.c

@@ -699,6 +699,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1802,
 /**/
     1801,
 /**/