design: add proposal for parameterized generic array sizes

[ajwerner]

Detailed proposal for golang/go#44253.

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[google-cla]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project (if not, look below for help). Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

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[ajwerner]

@googlebot I signed it!

[gopherbot]

This PR (HEAD: c3ddb0e) has been imported to Gerrit for code review.

Please visit https://go-review.googlesource.com/c/proposal/+/301290 to see it.

Tip: You can toggle comments from me using the comments slash command (e.g. /comments off)
See the Wiki page for more info

[gopherbot]

Message from Go Bot:

Patch Set 1:

Congratulations on opening your first change. Thank you for your contribution!

Next steps:
A maintainer will review your change and provide feedback. See
https://golang.org/doc/contribute.html#review for more info and tips to get your
patch through code review.

Most changes in the Go project go through a few rounds of revision. This can be
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have a lasting impact.

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Please don’t reply on this GitHub thread. Visit golang.org/cl/301290.
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[gopherbot]

Message from Ian Lance Taylor:

Patch Set 1:

(6 comments)

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Please don’t reply on this GitHub thread. Visit golang.org/cl/301290.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

This PR (HEAD: 8e3bc88) has been imported to Gerrit for code review.

Please visit https://go-review.googlesource.com/c/proposal/+/301290 to see it.

Tip: You can toggle comments from me using the comments slash command (e.g. /comments off)
See the Wiki page for more info

[gopherbot]

Message from Andrew Werner:

Patch Set 2:

(7 comments)

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Please don’t reply on this GitHub thread. Visit golang.org/cl/301290.
After addressing review feedback, remember to publish your drafts!

[gopherbot]

This PR is being closed because golang.org/cl/301290 has been merged.