eval_call_srcref is not correct with on.exit

[programLyrique]

Given this minimal example:

calls <- do_trace_eval({
    f <- function() {
      1 + 1
      on.exit(eval(as.name("x"), envir = parent.frame()))
    }
    x <- 6
    f()
  })

caller_srcref and eval_call_srcref are equal, but they should not.

caller_srcref is correct and corresponds to where f() is located.