patch 8.2.2860: adding a text property causes the whole window to be redawn
Problem: Adding a text property causes the whole window to be redawn.
Solution: Use changed_lines_buf() to only redraw the affected lines.
diff --git a/src/proto/change.pro b/src/proto/change.pro
index 69ba2a6..b1aa9d5 100644
--- a/src/proto/change.pro
+++ b/src/proto/change.pro
@@ -14,6 +14,7 @@
void appended_lines_mark(linenr_T lnum, long count);
void deleted_lines(linenr_T lnum, long count);
void deleted_lines_mark(linenr_T lnum, long count);
+void changed_lines_buf(buf_T *buf, linenr_T lnum, linenr_T lnume, long xtra);
void changed_lines(linenr_T lnum, colnr_T col, linenr_T lnume, long xtra);
void unchanged(buf_T *buf, int ff, int always_inc_changedtick);
void save_file_ff(buf_T *buf);