topdown: Fix inlining controls for functions

When shallow inlining is configured or inlining is disabled on specific
paths, we'll now save the PE'ed function into support and call it if
there are unknowns in either the function definiion (transitively) or
the call-site arguments.

Fixes #3463

Signed-off-by: Stephan Renatus <stephan.renatus@gmail.com>
Signed-off-by: Torin Sandall <torinsandall@gmail.com>

Co-authored-by: Stephan Renatus <stephan.renatus@gmail.com>
Co-authored-by: Torin Sandall <torinsandall@gmail.com>