patch 8.1.2189: syntax highlighting wrong for tab
Problem: Syntax highlighting wrong for tab.
Solution: Don't clear syntax attribute n_extra is non-zero.
diff --git a/src/testdir/test_syntax.vim b/src/testdir/test_syntax.vim
index 4f431d0..c87b3d6 100644
--- a/src/testdir/test_syntax.vim
+++ b/src/testdir/test_syntax.vim
@@ -549,6 +549,7 @@
\ ' printf("Just an example piece of C code\n");',
\ ' return 0x0ff;',
\ '}',
+ \ "\t\t ",
\ ' static void',
\ 'myFunction(const double count, struct nothing, long there) {',
\ "\t// 123: nothing to endif here",
@@ -565,6 +566,7 @@
let buf = RunVimInTerminal('Xtest.c', #{rows: 22})
call term_sendkeys(buf, ":syn keyword Search Note\r")
+ call term_sendkeys(buf, ":syn match Error /^\\s\\+$/\r")
call term_sendkeys(buf, ":set hlsearch\r")
call term_sendkeys(buf, "/endif\r")
call term_sendkeys(buf, "vjfC")