perf annotate: Pass evsel instead of evidx on annotation functions

Pass evsel instead of evidx.  This is a preparation for supporting event
group view in annotation and no functional change is intended.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1362462812-30885-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 226a4ae..8483313 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -177,7 +177,7 @@
 
 #ifdef NEWT_SUPPORT
 #include "../ui/keysyms.h"
-int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
+int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
 			     struct hist_browser_timer *hbt);
 
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
@@ -196,7 +196,8 @@
 
 static inline int hist_entry__tui_annotate(struct hist_entry *self
 					   __maybe_unused,
-					   int evidx __maybe_unused,
+					   struct perf_evsel *evsel
+					   __maybe_unused,
 					   struct hist_browser_timer *hbt
 					   __maybe_unused)
 {