(j3.2006) Question about statement functions and host association

[Van Snyder]

19.5.1.4 says a nested scoping unit has access to named entities from
its host.

C1576 says that if a reference to a statement function appears in the
<scalar-expr> of the definition of a statement function, "its definition
shall have been provided earlier in the scoping unit."

I couldn't find a place where "shall have been provided earlier in the
scoping unit" is specified to include host association.

Can a reference to a statement function within the <scalar-expr> of the
definition of a statement function be a reference to one accessed by
host association?