Rakudo first-index deprecation fix

[azawawi]

Please let me know if you need any changes to it.

[azawawi]

I have updated the PR to include just the deprecation fix given that future rakudo module pre-compilation will fix the issue detailed in the reverted commits.

Thanks for your time,
Ahmad

[jonathanstowe]

Hi,
unfortunately there is a merge conflict on this, I could fix it manually but it would lose some of the history, could you pull the latest upstream, fix the conflicts and re-push? Don't think it should be too much to fix.

Thanks.

[azawawi]

This has already been fixed in 407fa82 and this PR #98.

I will close this PR. Thanks for your time 👍

[jonathanstowe]

Hi,
I think we would still be interested in the load time enhancement parts though if you could do another PR at some point :)

[azawawi]

Sure. When pre-compilation lands in rakudo, I will go through it again. Meanwhile, I will go back to work on my pet project (i.e. Selenium::WebDriver). Help Wanted 👍

[jonathanstowe]

Maybe we want to get some "Help Wanted" page for module authors.