Rework all inlining attribute labels with consistent decisions#36

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xacrimon wants to merge 11 commits intodjc:mainfrom

xacrimon:joel/no-hint-inline-cold-path

Commits on Apr 26, 2025

remove unecessary implementation of default for ser/de visitors + don't hint inlining on serialize or visit_seq
xacrimon
committed
remove explicit inline encouragement via attributes on expensive/large/uncommon fns in lru_cache.rs and linked_hash_set.rs
xacrimon
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remove inline attribs on non hot or complex fns in linked_hash_map.rs
xacrimon
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revert changes applied in another pr
xacrimon
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fix unintended change in <Drain as Drop>::drop
xacrimon
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remove inlining attributes on slow, complex and branchy internal impl functions that called from many more public facing API-layer methods
xacrimon
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force inlining through hash wrapper as not inlining is always worse in every regard
xacrimon
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don't encourage inlining main entry lookup fn
xacrimon
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do encourage inline-thru of hashing due to CPU branch prediction of the table index
xacrimon
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prevent inlining of LL initialization and node freeing
xacrimon
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cargo fmt
xacrimon
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