Fix positions printing in compiler/graph-visualizer.cc.

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 <memory>
 #include <sstream>
 #include <string>
 
@@ skipping 479 matching lines @@
         PrintIndent();
         os_ << "0 " << uses << " ";
         PrintNode(node);
         if (FLAG_trace_turbo_types) {
           os_ << " ";
           PrintType(node);
         }
         if (positions != nullptr) {
           SourcePosition position = positions->GetSourcePosition(node);
           if (position.IsKnown()) {
+            os_ << " pos:";
             if (position.isInlined()) {
               os_ << "inlining(" << position.InliningId() << "),";
             }
-            os_ << " pos:" << position.ScriptOffset();
+            os_ << position.ScriptOffset();
           }
         }
         os_ << " <|@\n";
       }
 
       BasicBlock::Control control = current->control();
       if (control != BasicBlock::kNone) {
         PrintIndent();
         os_ << "0 0 ";
         if (current->control_input() != nullptr) {
@@ skipping 193 matching lines @@
         os << "]";
       }
       os << std::endl;
     }
   }
   return os;
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8