message: feat(runtime-core) Create the `always_trap` host function.
diff: @@ -733,6 +733,12 @@ where
  }
  }
  +/// Function that always fails. It can be used as a placeholder when a
  +/// host function is missing for instance.
  +pub(crate) fn always_trap() -> Result<(), &'static str> {
  + Err("not implemented")
  +}
  +
  #[cfg(test)]
  mod tests {
  use super::*;
  