[turbofan] Add schedule to visualizer output

src/compiler/scheduler.cc

Index: src/compiler/scheduler.cc
diff --git a/src/compiler/scheduler.cc b/src/compiler/scheduler.cc
index a0ab947eab6f7fdf2db7aec95473f05e3daa9445..2b232fbcca623a36a71f66013a495213e3d4e73e 100644
--- a/src/compiler/scheduler.cc
+++ b/src/compiler/scheduler.cc
@@ -13,6 +13,7 @@
 #include "src/compiler/node.h"
 #include "src/compiler/node-marker.h"
 #include "src/compiler/node-properties.h"
+#include "src/compiler/visualizer.h"
 #include "src/zone-containers.h"
 
 namespace v8 {
@@ -1637,7 +1638,8 @@ void Scheduler::FuseFloatingControl(BasicBlock* block, Node* node) {
   Trace("--- FUSE FLOATING CONTROL ----------------------------------\n");
   if (FLAG_trace_turbo_scheduler) {
     OFStream os(stdout);
-    os << "Schedule before control flow fusion:\n" << *schedule_;
+    os << "Schedule before control flow fusion:\n"
+       << ScheduleAsJSON(*schedule_);
   }
 
   // Iterate on phase 1: Build control-flow graph.
@@ -1679,7 +1681,7 @@ void Scheduler::FuseFloatingControl(BasicBlock* block, Node* node) {
 
   if (FLAG_trace_turbo_scheduler) {
     OFStream os(stdout);
-    os << "Schedule after control flow fusion:\n" << *schedule_;
+    os << "Schedule after control flow fusion:\n" << ScheduleAsJSON(*schedule_);
   }
 }