Ensure that compile time types for comparisons are recomputed once comparison are specialized.

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 94 matching lines @@
 void CompileType::PrintTo(BufferFormatter* f) const {
   f->Print("T{");
   f->Print("%s, ", is_nullable_ ? "null" : "not-null");
   if (cid_ != kIllegalCid) {
     const Class& cls =
       Class::Handle(Isolate::Current()->class_table()->At(cid_));
     f->Print("%s, ", String::Handle(cls.Name()).ToCString());
   } else {
     f->Print("?, ");
   }
-  f->Print("%s}", (type_ != NULL) ? String::Handle(type_->Name()).ToCString()
-                                  : "?");
+  f->Print("%s}", (type_ != NULL) ? type_->ToCString() : "?");
 }
 
 
 const char* CompileType::ToCString() const {
   char buffer[1024];
   BufferFormatter f(buffer, sizeof(buffer));
   PrintTo(&f);
   return Isolate::Current()->current_zone()->MakeCopyOfString(buffer);
 }
 
@@ skipping 578 matching lines @@
       f->Print(" [");
       locations_[i].PrintTo(f);
       f->Print("]");
     }
   }
   f->Print(" }");
   if (outer_ != NULL) outer_->PrintTo(f);
 }
 
 }  // namespace dart