patch 8.2.4823: concat more than 2 strings in :def function is inefficient
Problem: Concatenating more than 2 strings in a :def function is
inefficient.
Solution: Add a count to the CONCAT instruction. (closes #10276)
diff --git a/src/proto/vim9instr.pro b/src/proto/vim9instr.pro
index 535673c..76c3f88 100644
--- a/src/proto/vim9instr.pro
+++ b/src/proto/vim9instr.pro
@@ -62,6 +62,7 @@
int generate_EXECCONCAT(cctx_T *cctx, int count);
int generate_RANGE(cctx_T *cctx, char_u *range);
int generate_UNPACK(cctx_T *cctx, int var_count, int semicolon);
+int generate_CONCAT(cctx_T *cctx, int count);
int generate_cmdmods(cctx_T *cctx, cmdmod_T *cmod);
int generate_undo_cmdmods(cctx_T *cctx);
int generate_store_var(cctx_T *cctx, assign_dest_T dest, int opt_flags, int vimvaridx, int scriptvar_idx, int scriptvar_sid, type_T *type, char_u *name);