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

We are printing `inlining(...), pos:offset` where we should print `pos:inlining(...), offset`.

BUG=

Review-Url: https://codereview.chromium.org/2586823002
Cr-Commit-Position: refs/heads/master@{#41786}

src/compiler/graph-visualizer.cc

@@ -497,10 +497,11 @@ void GraphC1Visualizer::PrintSchedule(const char* phase,
         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";