Remove FromBytesWithNulErrorKind and make FromVecWithNulErrorKind more actionable#143163

PixelDust22 wants to merge 2 commits intorust-lang:masterrust-lang/rust:masterfrom

PixelDust22:from-vec-with-nul-error-actionabilityPixelDust22/rust:from-vec-with-nul-error-actionabilityCopy head branch name to clipboard