patch 8.2.3121: 'listchars' "exceeds" character appears in foldcolumn

Problem:    'listchars' "exceeds" character appears in foldcolumn. Window
            separator is missing. (Leonid V.  Fedorenchik)
Solution:   Only draw the "exceeds" character in the text area.  Break the
            loop when not drawing the text. (closes #8524)
diff --git a/src/testdir/dumps/Test_listchars_01.dump b/src/testdir/dumps/Test_listchars_01.dump
new file mode 100644
index 0000000..72fff58
--- /dev/null
+++ b/src/testdir/dumps/Test_listchars_01.dump
@@ -0,0 +1,10 @@
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@2| @13||+1&&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0|>+0#4040ff13&||+1#0000000&| +0#0000e05#a8a8a8255@2>a+0#0000000#ffffff0@2| @26
+| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@16||+1&&| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@1||+1&&| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@29
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @15||+1&&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| ||+1&&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @28
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @10||+1&&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0|>+0#4040ff13&||+1#0000000&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @23
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @3||+1#0000000&|~+0#4040ff13&| @31
+|~| @18||+1#0000000&|~+0#4040ff13&| @3||+1#0000000&|~+0#4040ff13&| @31
+|~| @18||+1#0000000&|~+0#4040ff13&| @3||+1#0000000&|~+0#4040ff13&| @31
+|~| @18||+1#0000000&|~+0#4040ff13&| @3||+1#0000000&|~+0#4040ff13&| @31
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|1| @3|A|l@1| |<|]| |1|,| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @3|1|,|1| @9|A|l@1
+| +0&&@59
diff --git a/src/testdir/dumps/Test_listchars_02.dump b/src/testdir/dumps/Test_listchars_02.dump
new file mode 100644
index 0000000..b7be52e
--- /dev/null
+++ b/src/testdir/dumps/Test_listchars_02.dump
@@ -0,0 +1,10 @@
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@2| @13||+1&&| +0#0000e05#a8a8a8255@2|>+0#4040ff13#ffffff0||+1#0000000&| +0#0000e05#a8a8a8255@2>a+0#0000000#ffffff0@2| @27
+| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@16||+1&&| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0||+1&&| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@30
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @15||+1&&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0||+1&&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @29
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @10||+1&&| +0#0000e05#a8a8a8255@2|>+0#4040ff13#ffffff0||+1#0000000&| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @24
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @2||+1#0000000&|~+0#4040ff13&| @32
+|~| @18||+1#0000000&|~+0#4040ff13&| @2||+1#0000000&|~+0#4040ff13&| @32
+|~| @18||+1#0000000&|~+0#4040ff13&| @2||+1#0000000&|~+0#4040ff13&| @32
+|~| @18||+1#0000000&|~+0#4040ff13&| @2||+1#0000000&|~+0#4040ff13&| @32
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|1| @3|A|l@1| |<| |1|,| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @3|1|,|1| @10|A|l@1
+| +0&&@59
diff --git a/src/testdir/dumps/Test_listchars_03.dump b/src/testdir/dumps/Test_listchars_03.dump
new file mode 100644
index 0000000..13aca6d
--- /dev/null
+++ b/src/testdir/dumps/Test_listchars_03.dump
@@ -0,0 +1,10 @@
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@2| @13||+1&&| +0#0000e05#a8a8a8255@2||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2>a+0#0000000#ffffff0@2| @28
+| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@16||+1&&| +0#0000e05#a8a8a8255@2||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@31
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @15||+1&&| +0#0000e05#a8a8a8255@2||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @30
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @10||+1&&| +0#0000e05#a8a8a8255@2||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @25
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| @1||+1#0000000&|~+0#4040ff13&| @33
+|~| @18||+1#0000000&|~+0#4040ff13&| @1||+1#0000000&|~+0#4040ff13&| @33
+|~| @18||+1#0000000&|~+0#4040ff13&| @1||+1#0000000&|~+0#4040ff13&| @33
+|~| @18||+1#0000000&|~+0#4040ff13&| @1||+1#0000000&|~+0#4040ff13&| @33
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|1| @3|A|l@1| |<| |1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @4|1|,|1| @10|A|l@1
+| +0&&@59
diff --git a/src/testdir/dumps/Test_listchars_04.dump b/src/testdir/dumps/Test_listchars_04.dump
new file mode 100644
index 0000000..e62c5af
--- /dev/null
+++ b/src/testdir/dumps/Test_listchars_04.dump
@@ -0,0 +1,10 @@
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@2| @13||+1&&| +0#0000e05#a8a8a8255@1||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2>a+0#0000000#ffffff0@2| @29
+| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@16||+1&&| +0#0000e05#a8a8a8255@1||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@32
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @15||+1&&| +0#0000e05#a8a8a8255@1||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @31
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @10||+1&&| +0#0000e05#a8a8a8255@1||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @26
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&| ||+1#0000000&|~+0#4040ff13&| @34
+|~| @18||+1#0000000&|~+0#4040ff13&| ||+1#0000000&|~+0#4040ff13&| @34
+|~| @18||+1#0000000&|~+0#4040ff13&| ||+1#0000000&|~+0#4040ff13&| @34
+|~| @18||+1#0000000&|~+0#4040ff13&| ||+1#0000000&|~+0#4040ff13&| @34
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|1| @3|A|l@1| |<|1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @4|1|,|1| @11|A|l@1
+| +0&&@59
diff --git a/src/testdir/dumps/Test_listchars_05.dump b/src/testdir/dumps/Test_listchars_05.dump
new file mode 100644
index 0000000..89b759f
--- /dev/null
+++ b/src/testdir/dumps/Test_listchars_05.dump
@@ -0,0 +1,10 @@
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@2| @13||+1&&| +0#0000e05#a8a8a8255||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2>a+0#0000000#ffffff0@2| @30
+| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@16||+1&&| +0#0000e05#a8a8a8255||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2| +0#0000000#ffffff0@33
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @15||+1&&| +0#0000e05#a8a8a8255||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0| @32
+| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @10||+1&&| +0#0000e05#a8a8a8255||+1#0000000#ffffff0| +0#0000e05#a8a8a8255@2|a+0#0000000#ffffff0@5| @27
+|~+0#4040ff13&| @18||+1#0000000&|~+0#4040ff13&||+1#0000000&|~+0#4040ff13&| @35
+|~| @18||+1#0000000&|~+0#4040ff13&||+1#0000000&|~+0#4040ff13&| @35
+|~| @18||+1#0000000&|~+0#4040ff13&||+1#0000000&|~+0#4040ff13&| @35
+|~| @18||+1#0000000&|~+0#4040ff13&||+1#0000000&|~+0#4040ff13&| @35
+|<+1#0000000&|a|m|e|]| |[|+|]| |1|,|1| @3|A|l@1| |<| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @5|1|,|1| @11|A|l@1
+| +0&&@59
diff --git a/src/testdir/test_listchars.vim b/src/testdir/test_listchars.vim
index 9aca080..7068be7 100644
--- a/src/testdir/test_listchars.vim
+++ b/src/testdir/test_listchars.vim
@@ -1,6 +1,8 @@
 " Tests for 'listchars' display with 'list' and :list
 
+source check.vim
 source view_util.vim
+source screendump.vim
 
 func Test_listchars()
   enew!
@@ -356,4 +358,34 @@
   set list& listchars&
 endfunc
 
+func Test_listchars_foldcolumn()
+  CheckScreendump
+
+  let lines =<< trim END
+      call setline(1, ['aaa', '', 'a', 'aaaaaa'])
+      vsplit
+      vsplit
+      windo set signcolumn=yes foldcolumn=1 winminwidth=0 nowrap list listchars=extends:>,precedes:<
+  END
+  call writefile(lines, 'XTest_listchars')
+
+  let buf = RunVimInTerminal('-S XTest_listchars', {'rows': 10, 'cols': 60})
+
+  call term_sendkeys(buf, "13\<C-W>>")
+  call VerifyScreenDump(buf, 'Test_listchars_01', {})
+  call term_sendkeys(buf, "\<C-W>>")
+  call VerifyScreenDump(buf, 'Test_listchars_02', {})
+  call term_sendkeys(buf, "\<C-W>>")
+  call VerifyScreenDump(buf, 'Test_listchars_03', {})
+  call term_sendkeys(buf, "\<C-W>>")
+  call VerifyScreenDump(buf, 'Test_listchars_04', {})
+  call term_sendkeys(buf, "\<C-W>>")
+  call VerifyScreenDump(buf, 'Test_listchars_05', {})
+
+  " clean up
+  call StopVimInTerminal(buf)
+  call delete('XTest_listchars')
+endfunc
+
+
 " vim: shiftwidth=2 sts=2 expandtab