Auto merge of #108106 - the8472:layout-opt, r=wesleywiser

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Improve niche placement by trying two strategies and picking the better result

Fixes #104807
Fixes #105371

Determining which sort order is better requires calculating the struct size (so we can calculate the niche offset). But that in turn depends on the field order, so happens after sorting. So the simple way to solve that is to run the whole thing twice and pick the better result.

1st commit is just code motion, the meat is in the later ones.

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bors 2023-04-29 08:55:04 +00:00

parent 182ca6fa45 3f72ef5fd9

commit a11f328916

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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