refactor: iwyu #31637

Result of `make iwyu` (after some "fixups").

6 files changed, 17 insertions, 3 deletions

diff --git a/src/nvim/msgpack_rpc/channel.c b/src/nvim/msgpack_rpc/channel.c
index 626312b666..e92039b99f 100644
--- a/src/nvim/msgpack_rpc/channel.c
+++ b/src/nvim/msgpack_rpc/channel.c
@@ -26,6 +26,7 @@
 #include "nvim/msgpack_rpc/channel.h"
 #include "nvim/msgpack_rpc/channel_defs.h"
 #include "nvim/msgpack_rpc/packer.h"
+#include "nvim/msgpack_rpc/packer_defs.h"
 #include "nvim/msgpack_rpc/unpacker.h"
 #include "nvim/os/input.h"
 #include "nvim/types_defs.h"
diff --git a/src/nvim/msgpack_rpc/packer.c b/src/nvim/msgpack_rpc/packer.c
index b739f7ba28..e5eab91b34 100644
--- a/src/nvim/msgpack_rpc/packer.c
+++ b/src/nvim/msgpack_rpc/packer.c
@@ -1,8 +1,17 @@
 #include <assert.h>
+#include <lauxlib.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
 
+#include "klib/kvec.h"
 #include "nvim/api/private/defs.h"
+#include "nvim/api/private/helpers.h"
 #include "nvim/lua/executor.h"
+#include "nvim/macros_defs.h"
+#include "nvim/memory.h"
 #include "nvim/msgpack_rpc/packer.h"
+#include "nvim/types_defs.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "msgpack_rpc/packer.c.generated.h"
diff --git a/src/nvim/msgpack_rpc/packer.h b/src/nvim/msgpack_rpc/packer.h
index 299962bab4..da86f8e969 100644
--- a/src/nvim/msgpack_rpc/packer.h
+++ b/src/nvim/msgpack_rpc/packer.h
@@ -1,11 +1,11 @@
 #pragma once
 
 #include <stdbool.h>
-#include <stddef.h>
+#include <stddef.h>  // IWYU pragma: keep
 #include <stdint.h>
-#include <string.h>
+#include <string.h>  // IWYU pragma: keep
 
-#include "nvim/api/private/defs.h"
+#include "nvim/api/private/defs.h"  // IWYU pragma: keep
 #include "nvim/msgpack_rpc/packer_defs.h"
 
 #define mpack_w(b, byte) *(*(b))++ = (char)(byte);
diff --git a/src/nvim/msgpack_rpc/server.c b/src/nvim/msgpack_rpc/server.c
index 462f8397f4..b2c6d0d007 100644
--- a/src/nvim/msgpack_rpc/server.c
+++ b/src/nvim/msgpack_rpc/server.c
@@ -17,6 +17,7 @@
 #include "nvim/memory.h"
 #include "nvim/msgpack_rpc/server.h"
 #include "nvim/os/os.h"
+#include "nvim/os/os_defs.h"
 #include "nvim/os/stdpaths_defs.h"
 #include "nvim/types_defs.h"
 
diff --git a/src/nvim/msgpack_rpc/unpacker.c b/src/nvim/msgpack_rpc/unpacker.c
index 4ddc41e596..185a1abccb 100644
--- a/src/nvim/msgpack_rpc/unpacker.c
+++ b/src/nvim/msgpack_rpc/unpacker.c
@@ -1,6 +1,7 @@
 #include <assert.h>
 #include <stdbool.h>
 #include <stdlib.h>
+#include <uv.h>
 
 #include "klib/kvec.h"
 #include "mpack/conv.h"
diff --git a/src/nvim/msgpack_rpc/unpacker.h b/src/nvim/msgpack_rpc/unpacker.h
index c29462292f..a9cd7e4652 100644
--- a/src/nvim/msgpack_rpc/unpacker.h
+++ b/src/nvim/msgpack_rpc/unpacker.h
@@ -1,8 +1,10 @@
 #pragma once
 
 #include <inttypes.h>
+#include <stdbool.h>
 #include <string.h>
 
+#include "klib/kvec.h"
 #include "mpack/mpack_core.h"
 #include "mpack/object.h"
 #include "nvim/api/private/defs.h"