[dev.regabi] cmd/compile: cleanup for concrete types - inl
[dev.regabi] cmd/compile: cleanup for concrete types - inl

An automated rewrite will add concrete type assertions after
a test of n.Op(), when n can be safely type-asserted
(meaning, n is not reassigned a different type, n is not reassigned
and then used outside the scope of the type assertion,
and so on).

This sequence of CLs handles the code that the automated
rewrite does not: adding specific types to function arguments,
adjusting code not to call n.Left() etc when n may have multiple
representations, and so on.

This CL focuses on inl.go.

Passes buildall w/ toolstash -cmp.

Change-Id: Iaaee7664cd43e264d9e49d252e3afa7cf719939b
Reviewed-on: https://go-review.googlesource.com/c/go/+/277926
Trust: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>
Reviewed-by: Matthew Dempsky <e56ac2c500064424afac424d4b5e53bd0570a731@google.com>

cloudflare/go,CAFxX/go,golang/go,CAFxX/go,CAFxX/go,golang/go,nawawi/go,cloudflare/go,golang/go,nawawi/go,cloudflare/go,CAFxX/go,CAFxX/go,nawawi/go,CAFxX/go,CAFxX/go,cloudflare/go,golang/go,cloudflare/go,nawawi/go,golang/go,cloudflare/go,golang/go,cloudflare/go,cloudflare/go,nawawi/go,nawawi/go,golang/go,nawawi/go,CAFxX/go,nawawi/go,golang/go