pub unsafe fn hash(&mut self, builder: LLVMBuilderRef, value: LLVMValueRef) -> LLVMValueRef {
        LLVMBuildStructGEP(builder, value, HASH_INDEX, c_str!("slot.hash"))
    }
Return the hash pointer for the provide slot.

The slot should be a pointer.
weld/src/codegen/llvm2/dict.rs