Function patch_seq_peek_quotation_fn_ptr 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn patch_seq_peek_quotation_fn_ptr(
    stack: Stack,
) -> usize

Get the impl_ function pointer from a quotation on top of stack

Used by the compiler for tail call optimization of call. Returns the tailcc impl_ pointer for musttail calls from compiled code. Caller must ensure the top value is a Quotation (use peek_is_quotation first).

Stack effect: ( quot – quot ) [non-consuming peek]

Safety

• Stack must not be null
• Top of stack must be a Quotation (panics otherwise)