Tighten up saturating_ math checks
#1254
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What
Resolves #1141
Several places benefit from changing
saturating_tochecked_math:saturating_add(_mul)on u32, saturation would be within possibilitysaturating_subsaturation would mean actual error, e.g index out of boundIn both cases, changing to
checked_version means overflow errors are caught sooner.Why
[TODO: Why this change is being made. Include any context required to understand the why.]
Known limitations
[TODO or N/A]