Start porting fast typechecks to x64.

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"
 
 namespace dart {
@@ skipping 32 matching lines @@
   OS::Print("#%s", val->value().ToCString());
 }
 
 
 void FlowGraphPrinter::VisitAssertAssignable(AssertAssignableComp* comp) {
   OS::Print("AssertAssignable(");
   comp->value()->Accept(this);
   OS::Print(", %s, '%s'",
             String::Handle(comp->dst_type().Name()).ToCString(),
             comp->dst_name().ToCString());
+  if (comp->instantiator() != NULL) {
+    OS::Print(" (instantiator:");
+    comp->instantiator()->Accept(this);
+    OS::Print(")");
+  }
   if (comp->instantiator_type_arguments() != NULL) {
-    OS::Print(" (instantiator:");
+    OS::Print(" (instantiator-type-arg:");
     comp->instantiator_type_arguments()->Accept(this);
+    OS::Print(")");
   }
   OS::Print(")");
 }
 
 
 void FlowGraphPrinter::VisitAssertBoolean(AssertBooleanComp* comp) {
   OS::Print("AssertBoolean(");
   comp->value()->Accept(this);
   OS::Print(")");
 }
@@ skipping 324 matching lines @@
 void FlowGraphPrinter::VisitBranch(BranchInstr* instr) {
   OS::Print("    if ");
   instr->value()->Accept(this);
   OS::Print(" goto (%d, %d)",
             reverse_index(instr->true_successor()->postorder_number()),
             reverse_index(instr->false_successor()->postorder_number()));
 }
 
 
 }  // namespace dart