perf symbols: Remove some unnecessary includes from symbol.h

And fixup the fallout in places like annotation and jitdump that were
using things like dirname() but weren't including libgen.h, etc.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-wrii9hy1a1wathc0398f9fgt@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/annotate.c

@@ -9,6 +9,7 @@
 
 #include <errno.h>
 #include <inttypes.h>
+#include <libgen.h>
 #include "util.h"
 #include "ui/ui.h"
 #include "sort.h"

tools/perf/util/dso.c

@@ -8,6 +8,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <libgen.h>
 #include "compress.h"
 #include "path.h"
 #include "symbol.h"

tools/perf/util/jitdump.c

@@ -2,6 +2,7 @@
 #include <sys/sysmacros.h>
 #include <sys/types.h>
 #include <errno.h>
+#include <libgen.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

tools/perf/util/symbol-minimal.c

@@ -3,6 +3,7 @@
 #include "util.h"
 
 #include <errno.h>
+#include <unistd.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <string.h>

tools/perf/util/symbol.h

@@ -5,16 +5,10 @@
 #include <linux/types.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include "map.h"
-#include "../perf.h"
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include <stdio.h>
-#include <byteswap.h>
-#include <libgen.h>
 #include "branch.h"
-#include "build-id.h"
-#include "event.h"
 #include "path.h"
 #include "symbol_conf.h"
 
@@ -26,6 +20,10 @@
 
 #include "dso.h"
 
+struct map;
+struct map_groups;
+struct option;
+
 /*
  * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
  * for newer versions we can use mmap to reduce memory usage: