Fixes manual_slice_size_computation ICE and triggers in const context #14804
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In this case, a dereference is needed before using `mem::size_of_val()`.
rustbot added the S-waiting-on-review 
samueltardieu changed the title manual_slice_size_computation ICE and triggers in const contextmanual_slice_size_computation ICE and triggers in const context 
y21 approved these changes May 20, 2025
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The first commit fixes #14802: when a slice is directly present, it must be dereferenced (instead of referenced -1 times) before being passed to
mem::size_of_val().The second commit triggers the lint in a
constcontact when MSRV ≥ 1.85.changelog: [
manual_slice_size_computation]: fix ICE in suggestion to efficiently compute the size of a slice, and trigger the lint inconstcontext as well