napi: supress invalid coverity leak message

Coverity was complaining that finalizer was being
leaked in this method, however it should be
freed when the buffer is finalized so I believe
the message is invalid.

Add the required comments to suppress the warning.

PR-URL: #12192
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Ben Noordhuis <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Hitesh Kanwathirtha <[email protected]>

Author: mhdawson

src/node_api.cc

@@ -2290,6 +2290,10 @@ napi_status napi_create_external_buffer(napi_env env,
 
   *result = v8impl::JsValueFromV8LocalValue(maybe.ToLocalChecked());
   return GET_RETURN_STATUS();
+  // Tell coverity that 'finalizer' should not be freed when we return
+  // as it will be deleted when the buffer to which it is associated
+  // is finalized.
+  // coverity[leaked_storage]
 }
 
 napi_status napi_create_buffer_copy(napi_env env,