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