refactor: move non-symbols to defs.h headers

src/nvim/channel.h

@@ -4,6 +4,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 
+#include "nvim/channel_defs.h"  // IWYU pragma: export
 #include "nvim/eval/typval_defs.h"
 #include "nvim/event/libuv_process.h"
 #include "nvim/event/multiqueue.h"
@@ -19,60 +20,6 @@
 #include "nvim/terminal.h"
 #include "nvim/types_defs.h"
 
-#define CHAN_STDIO 1
-#define CHAN_STDERR 2
-
-typedef enum {
-  kChannelStreamProc,
-  kChannelStreamSocket,
-  kChannelStreamStdio,
-  kChannelStreamStderr,
-  kChannelStreamInternal,
-} ChannelStreamType;
-
-typedef enum {
-  kChannelPartStdin,
-  kChannelPartStdout,
-  kChannelPartStderr,
-  kChannelPartRpc,
-  kChannelPartAll,
-} ChannelPart;
-
-typedef enum {
-  kChannelStdinPipe,
-  kChannelStdinNull,
-} ChannelStdinMode;
-
-typedef struct {
-  Stream in;
-  Stream out;
-} StdioPair;
-
-typedef struct {
-  bool closed;
-} StderrState;
-
-typedef struct {
-  LuaRef cb;
-  bool closed;
-} InternalState;
-
-typedef struct {
-  Callback cb;
-  dict_T *self;
-  garray_T buffer;
-  bool eof;
-  bool buffered;
-  bool fwd_err;
-  const char *type;
-} CallbackReader;
-
-#define CALLBACK_READER_INIT ((CallbackReader){ .cb = CALLBACK_NONE, \
-                                                .self = NULL, \
-                                                .buffer = GA_EMPTY_INIT_VALUE, \
-                                                .buffered = false, \
-                                                .fwd_err = false, \
-                                                .type = NULL })
 static inline bool callback_reader_set(CallbackReader reader)
 {
   return reader.cb.type != kCallbackNone || reader.self;