tag-returning: Adopted tag-returns in btree lookups

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- lfs3_btree_lookupleaf
- lfs3_btree_lookupnext
- lfs3_btree_lookup
- lfs3_btree_traverse
- NOT lfs3_btree_namelookup

Looks like we're starting to claw back stack usage a bit. This makes
sense as the btree logic involves the most layers -- with out-pointers
it needs more temporary copies to inspect tags along the way:

           code          stack          ctx
  before: 36576           2376          656
  after:  36520 (-0.2%)   2352 (-1.0%)  656 (+0.0%)

...

This commit is contained in:

Christopher Haster

2025-07-17 15:11:40 -05:00

parent 8be483d493

commit 100fb66d37

4 changed files with 406 additions and 421 deletions

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tests/test_btree.toml

+267 -262

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