[turbofan] Renamed tracing flags for TurboFan reducers and graph trimmer

src/compiler/graph-reducer.cc

Index: src/compiler/graph-reducer.cc
diff --git a/src/compiler/graph-reducer.cc b/src/compiler/graph-reducer.cc
index 2ef1ba137dd4a2ebbc914a2cef9f4221c2da9774..466f935f51c848e7691dba6405829da355ed68e2 100644
--- a/src/compiler/graph-reducer.cc
+++ b/src/compiler/graph-reducer.cc
@@ -168,6 +168,12 @@ void GraphReducer::Replace(Node* node, Node* replacement) {
 
 
 void GraphReducer::Replace(Node* node, Node* replacement, NodeId max_id) {
+  if (FLAG_trace_turbo_reduction) {

[Benedikt Meurer, 2016/07/09 17:45:23]

Can you use the streams instead? I.e. sth along the lines of

OFStream os(stdout);
os << "- Replacing " << *node << " with " *replacement << std::endl;

+    PrintF("- Replacing ");
+    node->Print();
+    PrintF("+ with ");
+    replacement->Print();
+  }
   if (node == graph()->start()) graph()->SetStart(replacement);
   if (node == graph()->end()) graph()->SetEnd(replacement);
   if (replacement->id() <= max_id) {