Merge the last bits of indirect callchain optimization

Merge the last bits of indirect callchain optimization

This set of commits (again - merge for easier bisect) is exclusively dealing
with various wantarray()-aware methods, most notably ::ResultSet::search()

Wide smoke of downstream adds only 3 extra dists to the list of "passes tests
but warns about indirect-sugar overrides" as shown in 12e7015a. In the cases
below all overrides are that of search() - a rather legitimate problem to be
warning about

  Catalyst::Controller::DBIC::API
  DBIx::Class::Helpers
  DBIx::Class::ResultSet::AccessorsEverywhere

No other known breakage as of this commit