perf tools: Use kallsyms__is_function()

Replacing equivalent, the equivalent and longer variation:

	 symbol__is_a(type, MAP__FUNCTION);

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-9t3dqogher54owfl9o2mir52@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/auxtrace.c

@@ -1679,7 +1679,7 @@ struct sym_args {
 static bool kern_sym_match(struct sym_args *args, const char *name, char type)
 {
 	/* A function with the same name, and global or the n'th found or any */
-	return symbol_type__is_a(type, MAP__FUNCTION) &&
+	return kallsyms__is_function(type) &&
 	       !strcmp(name, args->name) &&
 	       ((args->global && isupper(type)) ||
 		(args->selected && ++(args->cnt) == args->idx) ||
@@ -1784,7 +1784,7 @@ static int find_entire_kern_cb(void *arg, const char *name __maybe_unused,
 {
 	struct sym_args *args = arg;
 
-	if (!symbol_type__is_a(type, MAP__FUNCTION))
+	if (!kallsyms__is_function(type))
 		return 0;
 
 	if (!args->started) {

tools/perf/util/event.c

@@ -868,7 +868,7 @@ static int find_symbol_cb(void *arg, const char *name, char type,
 	 * Must be a function or at least an alias, as in PARISC64, where "_text" is
 	 * an 'A' to the same address as "_stext".
 	 */
-	if (!(symbol_type__is_a(type, MAP__FUNCTION) ||
+	if (!(kallsyms__is_function(type) ||
 	      type == 'A') || strcmp(name, args->name))
 		return 0;
 

tools/perf/util/symbol-elf.c

@@ -1413,7 +1413,7 @@ static int kcore_copy__process_kallsyms(void *arg, const char *name, char type,
 {
 	struct kcore_copy_info *kci = arg;
 
-	if (!symbol_type__is_a(type, MAP__FUNCTION))
+	if (!kallsyms__is_function(type))
 		return 0;
 
 	if (strchr(name, '[')) {