Block-option-renamefun
Check if two optional blocks are
related by function renaming.
- Signature
(block-option-renamefun old new ren) → _
- Arguments
- old — Guard (block-optionp old).
- new — Guard (block-optionp new).
- ren — Guard (renamingp ren).
- Returns
- _ — Type (reserr-optionp _).