Propagate class ids using existing type propagation framework.

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/intermediate_language.h"
 #include "vm/os.h"
 #include "vm/parser.h"
 
@@ skipping 418 matching lines @@
   }
 }
 
 
 static void PrintPropagatedType(BufferFormatter* f, const Definition& def) {
   if (def.HasPropagatedType()) {
     String& name = String::Handle();
     name = AbstractType::Handle(def.PropagatedType()).Name();
     f->Print(" {PT: %s}", name.ToCString());
   }
+  if (def.has_propagated_cid()) {
+    const Class& cls = Class::Handle(
+        Isolate::Current()->class_table()->At(def.propagated_cid()));
+    f->Print(" {PCid: %s}", String::Handle(cls.Name()).ToCString());
+  }
 }
 
+
 void PhiInstr::PrintTo(BufferFormatter* f) const {
   f->Print("    v%d <- phi(", ssa_temp_index());
   for (intptr_t i = 0; i < inputs_.length(); ++i) {
     if (inputs_[i] != NULL) inputs_[i]->PrintTo(f);
     if (i < inputs_.length() - 1) f->Print(", ");
   }
   f->Print(")");
   PrintPropagatedType(f, *this);
 }
 
@@ skipping 350 matching lines @@
     if ((locations_ != NULL) && !locations_[i].IsInvalid()) {
       f->Print(" [");
       locations_[i].PrintTo(f);
       f->Print("]");
     }
   }
   f->Print(" }");
 }
 
 }  // namespace dart