trace_processor: Add regression test for span join two views

Bug: 120487929
Change-Id: Ic719362b653aea66b5ca538a23e059fae67148e7
diff --git a/test/trace_processor/index b/test/trace_processor/index
index 4986b9f..ba8932b 100644
--- a/test/trace_processor/index
+++ b/test/trace_processor/index
@@ -6,6 +6,7 @@
 ../data/android_sched_and_ps.pb b119301023.sql android_sched_and_ps_b119301023.out
 ../data/android_sched_and_ps.pb stats.sql android_sched_and_ps_stats.out
 ../data/android_sched_and_ps.pb b119496959.sql android_sched_and_ps_b119496959.out
+../data/cpu_counters.pb b120487929.sql cpu_counters_b120487929.out
 ../data/memory_counters.pb smoke_args.sql memory_counters_smoke_args.out
 ../data/memory_counters.pb counter_args_join.sql memory_counters_counter_args_join.out
 synth_1.py smoke.sql synth_1_smoke.out