Add a bit of info to flow graph printout

runtime/vm/il_printer.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/il_printer.h"
 
 #include "vm/flow_graph_range_analysis.h"
 #include "vm/intermediate_language.h"
 #include "vm/os.h"
 #include "vm/parser.h"
@@ skipping 467 matching lines @@
 void StaticCallInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print(" %s ", String::Handle(function().name()).ToCString());
   for (intptr_t i = 0; i < ArgumentCount(); ++i) {
     if (i > 0) f->Print(", ");
     PushArgumentAt(i)->value()->PrintTo(f);
   }
 }
 
 
 void LoadLocalInstr::PrintOperandsTo(BufferFormatter* f) const {
-  f->Print("%s", local().name().ToCString());
+  f->Print("%s @%d", local().name().ToCString(), local().index());
 }
 
 
 void StoreLocalInstr::PrintOperandsTo(BufferFormatter* f) const {
-  f->Print("%s, ", local().name().ToCString());
+  f->Print("%s @%d, ", local().name().ToCString(), local().index());
   value()->PrintTo(f);
 }
 
 
 void NativeCallInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s", native_name().ToCString());
 }
 
 
 void GuardFieldInstr::PrintOperandsTo(BufferFormatter* f) const {
@@ skipping 635 matching lines @@
   value()->PrintTo(f);
 }
 
 
 void GotoInstr::PrintTo(BufferFormatter* f) const {
   if (HasParallelMove()) {
     parallel_move()->PrintTo(f);
     f->Print(" ");
   }
   if (GetDeoptId() != Isolate::kNoDeoptId) {
-    f->Print("goto:%" Pd " %" Pd "", GetDeoptId(), successor()->block_id());
+    f->Print("goto:%" Pd " B%" Pd "", GetDeoptId(), successor()->block_id());
   } else {
-    f->Print("goto: %" Pd "", successor()->block_id());
+    f->Print("goto: B%" Pd "", successor()->block_id());
   }
 }
 
 
 void IndirectGotoInstr::PrintTo(BufferFormatter* f) const {
   if (GetDeoptId() != Isolate::kNoDeoptId) {
     f->Print("igoto:%" Pd "(", GetDeoptId());
   } else {
     f->Print("igoto:(");
   }
@@ skipping 45 matching lines @@
 }
 
 const char* Environment::ToCString() const {
   char buffer[1024];
   BufferFormatter bf(buffer, 1024);
   PrintTo(&bf);
   return Isolate::Current()->current_zone()->MakeCopyOfString(buffer);
 }
 
 }  // namespace dart