patch 9.0.0145: substitute that joins lines drops text properties
Problem: Substitute that joins lines drops text properties.
Solution: Move text properties of the last line to the new line.
diff --git a/src/proto/textprop.pro b/src/proto/textprop.pro
index 0c580df..3d2e68f 100644
--- a/src/proto/textprop.pro
+++ b/src/proto/textprop.pro
@@ -6,6 +6,7 @@
int get_text_props(buf_T *buf, linenr_T lnum, char_u **props, int will_change);
int count_props(linenr_T lnum, int only_starting, int last_line);
int find_visible_prop(win_T *wp, int type_id, int id, textprop_T *prop, linenr_T *found_lnum);
+void add_text_props(linenr_T lnum, textprop_T *text_props, int text_prop_count);
proptype_T *text_prop_type_by_id(buf_T *buf, int id);
void f_prop_clear(typval_T *argvars, typval_T *rettv);
void f_prop_find(typval_T *argvars, typval_T *rettv);