[Issue 19048] In core.internal.hash.hashOf reduce template bloat: remove `auto ref` where unneeded and add `const` where possible

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19048

--- Comment #2 from github-bugzilla at puremagic.com ---
Commits pushed to master at https://github.com/dlang/druntime

https://github.com/dlang/druntime/commit/c8196245ce0aedbc984238b160ad4aa6b936e652
Fix Issue 19048 - In core.internal.hash.hashOf reduce template bloat: remove
`auto ref` where unneeded and add `const` where possible

https://github.com/dlang/druntime/commit/b5d124a84e6bebc5214ef687e9b393b7af5ebfb5
Merge pull request #2238 from n8sh/core-hash-19048

Fix Issue 19048 - In core.internal.hash.hashOf reduce template bloat: remove
`auto ref` where unneeded and add `const` where possible
merged-on-behalf-of: Steven Schveighoffer <schveiguy at users.noreply.github.com>

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