This function is soft-deprecated, please use quo_squash() instead.
A quosure or expression.
Whether to warn if the quosure contains other quosures
(those will be collapsed). This is useful when you use
quo_squash() in order to make a non-tidyeval API compatible
with quosures. In that case, getting rid of the nested quosures
is likely to cause subtle bugs and it is good practice to warn
the user about it.