perf stat: Use 'evsel->evlist' instead of 'evsel_list' in collect_all_aliases()

Use 'evsel->evlist' instead of 'evsel_list' in collect_all_aliases(), to
get rid of the global 'evsel_list' variable dependency.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-27-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-stat.c

@@ -1154,10 +1154,11 @@ static void collect_all_aliases(struct perf_evsel *counter,
 				       bool first),
 			    void *data)
 {
+	struct perf_evlist *evlist = counter->evlist;
 	struct perf_evsel *alias;
 
-	alias = list_prepare_entry(counter, &(evsel_list->entries), node);
-	list_for_each_entry_continue (alias, &evsel_list->entries, node) {
+	alias = list_prepare_entry(counter, &(evlist->entries), node);
+	list_for_each_entry_continue (alias, &evlist->entries, node) {
 		if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) ||
 		    alias->scale != counter->scale ||
 		    alias->cgrp != counter->cgrp ||