patch 8.2.3861: list of distributed files is outdated

Problem:    List of distributed files is outdated.
Solution:   Add new files.

Filelist

@@ -160,8 +160,11 @@ SRC_ALL =	\
 		src/version.h \
 		src/vim.h \
 		src/vim9.h \
+		src/vim9cmds.c \
 		src/vim9compile.c \
 		src/vim9execute.c \
+		src/vim9expr.c \
+		src/vim9instr.c \
 		src/vim9script.c \
 		src/vim9type.c \
 		src/viminfo.c \
@@ -319,8 +322,11 @@ SRC_ALL =	\
 		src/proto/usercmd.pro \
 		src/proto/userfunc.pro \
 		src/proto/version.pro \
+		src/proto/vim9cmds.pro \
 		src/proto/vim9compile.pro \
 		src/proto/vim9execute.pro \
+		src/proto/vim9expr.pro \
+		src/proto/vim9instr.pro \
 		src/proto/vim9script.pro \
 		src/proto/vim9type.pro \
 		src/proto/viminfo.pro \

src/version.c

@@ -749,6 +749,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3861,
 /**/
     3860,
 /**/