Function emit_call_arg

pub(crate) fn emit_call_arg(
    body: &mut InstrSeqBuilder<'_>,
    ctx: &LowerCtx<'_>,
    arg: &MirCallArg,
    context: &'static str,
    expected_ty: Option<ValType>,
    mutable_borrow_inout: bool,
) -> Result<(), LowerError>

Push one call argument using the runtime representation expected by the callee.