[turbofan] Rename floating point register / slot methods.

src/compiler/graph-visualizer.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/graph-visualizer.h"
 
 #include <sstream>
 #include <string>
 
 #include "src/code-stubs.h"
@@ skipping 518 matching lines @@
   }
 }
 
 void GraphC1Visualizer::PrintLiveRange(const LiveRange* range, const char* type,
                                        int vreg) {
   if (range != nullptr && !range->IsEmpty()) {
     PrintIndent();
     os_ << vreg << ":" << range->relative_id() << " " << type;
     if (range->HasRegisterAssigned()) {
       AllocatedOperand op = AllocatedOperand::cast(range->GetAssignedOperand());
-      if (op.IsDoubleRegister()) {
+      if (op.IsFPRegister()) {
         DoubleRegister assigned_reg = op.GetDoubleRegister();
         os_ << " \"" << assigned_reg.ToString() << "\"";
       } else {
         DCHECK(op.IsRegister());
         Register assigned_reg = op.GetRegister();
         os_ << " \"" << assigned_reg.ToString() << "\"";
       }
     } else if (range->spilled()) {
       const TopLevelLiveRange* top = range->TopLevel();
       int index = -1;
@@ skipping 97 matching lines @@
         os << "]";
       }
       os << std::endl;
     }
   }
   return os;
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8