Function patch_seq_pop_stack 

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

Helper for popping without extracting the value (for conditionals)

Pops the top stack node and returns the updated stack pointer. Used after peek_int_value to free the condition value’s stack node.

Stack effect: ( n – )

Safety

Stack must not be empty