perf annotate: Parse call targets earlier

No need to do it everytime the user presses enter/-> on a call
instruction.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ybgss44m5ycry8mk7b1qdbre@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 934c6fe..a2105f2 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -17,6 +17,7 @@
 };
 
 bool ins__is_jump(const struct ins *ins);
+bool ins__is_call(const struct ins *ins);
 
 struct disasm_line {
 	struct list_head node;