Document "has" (sortof) and "anon" declarators

Author: moritz

lib/Language/variables.pod

@@ -417,9 +417,27 @@ introduce an alias into the symbol table.
 
 =head2 The C<has> Declarator
 
+C<has> scopes attributes to instances of a class or role, and methods to
+classes or roles. C<has> is implied for methods, so C<has method x() {}>
+and C<method x() {}> do the same thing.
+
+See L<object orientation|/language/objects> for more documentation and some
+examples.
+
 =head2 The C<anon> Declarator
 
-=comment TODO
+The C<anon> declarator prevents a symbol from getting installed in the lexical
+scope, the method table and everywhere else.
+
+For example you can use it to declare subroutines which know their own name,
+but still aren't installed in a scope:
+
+    my %operations =
+        half   => anon sub half($x) { $x / 2 },
+        square => anon sub square($x) { $x * $x },
+        ;
+    say %operations<square>.name;       # square
+    say %operations<square>(8);         # 64
 
 =head2 The C<state> Declarator