[inspector] deduplicate stack frames

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index bc393957aa5134d7f9c2ce47248a68a477fc777f..2dc01358fa3c28e80dd55e4a3e3dfabc79a8c08c 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -717,6 +717,7 @@ class CaptureStackTraceHelper {
         AbstractCode::SetStackFrameCache(summ.abstract_code(), new_cache);
       }
     }
+    frame->set_id(next_id());
     return frame;
   }
 
@@ -738,12 +739,19 @@ class CaptureStackTraceHelper {
     info->set_column_number(position);
     info->set_script_id(summ.script()->id());
     info->set_is_wasm(true);
+    info->set_id(next_id());
     return info;
   }
 
  private:
   inline Factory* factory() { return isolate_->factory(); }
 
+  int next_id() const {
+    int id = isolate_->last_stack_frame_info_id() + 1;
+    isolate_->set_last_stack_frame_info_id(id);
+    return id;
+  }
+
   Isolate* isolate_;
 };