Use tokenPos instead of line/col in the vm service.

runtime/bin/vmservice/client/lib/src/elements/isolate_view.html

Index: runtime/bin/vmservice/client/lib/src/elements/isolate_view.html
diff --git a/runtime/bin/vmservice/client/lib/src/elements/isolate_view.html b/runtime/bin/vmservice/client/lib/src/elements/isolate_view.html
index f21a82f706bc505a391fb741f5dc441daffc0fba..80c4aecd18670baaf530a77a4a15a70c5aba3ee3 100644
--- a/runtime/bin/vmservice/client/lib/src/elements/isolate_view.html
+++ b/runtime/bin/vmservice/client/lib/src/elements/isolate_view.html
@@ -110,12 +110,12 @@
       <hr>
     </template>
 
+    <br>
+
     <template if="{{ isolate.topFrame != null }}">
-      <br>
-      <div class="sourceInset">
-        <pre>
-          {{ isolate.topFrame['line'] }} &nbsp; {{ isolate.topFrame['lineString'] }}</pre>
-      </div>
+      <script-inset script="{{ isolate.topFrame['script'] }}"
+                    pos="{{ isolate.topFrame['tokenPos'] }}">
+      </script-inset>
     </template>
 
     <br>