show how to call subs that (don't) overload coercers

Author: gfldex

doc/Type/Sub.pod6

@@ -6,12 +6,20 @@
 
     class Sub is Routine { }
 
-A type for subroutines. Subs are created with the C<sub> declarator keyword
+A type for subroutines. Subs are created with the C<sub> declarator keyword followed by a identifier.
 
     my $s = sub ($a, $b) { $a + $b };
     say $s.WHAT;        # (Sub)
     say $s(2, 5);       # 7
 
+Note that subs that go by the same name as
+L<coercers|/language/typesystem#Coercion> will not take precedence over
+coercers. To call them use the C<&>-sigil.
+
+    sub Int(Str $s){'oi‽'};
+    say [Int, Int('42'),&Int('42')];
+    # OUTPUT«[(Int) 42 oi‽]␤»
+
 =head1 Traits
 X<|trait_mod (declarator)>