add better support for IWYU and fix things

Remove the "make iwyu" build target. Move the functionality into the
recently introduced lint.fish script. Fix a lot, but not all, of the
include-what-you-use errors. Specifically, it fixes all of the IWYU errors
on my OS X server but only removes some of them on my Ubuntu 14.04 server.

Fixes #2957

1 files changed, 5 insertions, 5 deletions

diff --git a/src/parser.h b/src/parser.h
index af470d36..d40ca16b 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -1,22 +1,22 @@
 /** \file parser.h
   The fish parser.
 */
-
 #ifndef FISH_PARSER_H
 #define FISH_PARSER_H
 
-#include <stddef.h>                     // for size_t
-#include <list>                         // for _List_const_iterator, list, etc
+#include <stddef.h>
+#include <list>
+#include <vector>
+#include <stdbool.h>
 
 #include "common.h"
 #include "proc.h"
 #include "event.h"
 #include "parse_tree.h"
-#include "io.h"
 #include "parse_constants.h"
 #include "expand.h"
 
-#include <vector>
+class io_chain_t;
 
 /**
    event_blockage_t represents a block on events of the specified type