[turbofan]: Improved source position information

src/compiler/graph.h

Index: src/compiler/graph.h
diff --git a/src/compiler/graph.h b/src/compiler/graph.h
index e825b7e9a110fe292b938764811680dc9223fd7a..882e549f8d0b18a4e7c0686ce627038e29ab26ea 100644
--- a/src/compiler/graph.h
+++ b/src/compiler/graph.h
@@ -82,7 +82,7 @@ class Graph : public ZoneObject {
 
   int NodeCount() const { return next_node_id_; }
 
-  void Decorate(Node* node);
+  void Decorate(Node* node, bool incomplete);

[titzer, 2015/02/04 13:46:19]

Is this incomplete flag necessary for source positions? Seems like there is an
unrelated change to the typer included in this CL.

[danno, 2015/02/04 14:04:59]

Nope, this is intended. Note that previously Decorators were not called when
nodes were incomplete. This was because the typer didn't want to type some
"incomplete" nodes. However, the source position decorator _always_ wants to be
invoked, even for incomplete nodes.  

   void AddDecorator(GraphDecorator* decorator);
   void RemoveDecorator(GraphDecorator* decorator);
 
@@ -107,7 +107,7 @@ class Graph : public ZoneObject {
 class GraphDecorator : public ZoneObject {
  public:
   virtual ~GraphDecorator() {}
-  virtual void Decorate(Node* node) = 0;
+  virtual void Decorate(Node* node, bool incomplete) = 0;
 };
 
 }  // namespace compiler