does not format bold / italic / links in declarator blocks

[stuart-little]

raku --doc=Markdown on a file containing a declarator block renders any B<whatever> therein as-such, as opposed to the expected **whatever**.

Here's an example. Take, say

#!/usr/bin/env raku
use v6;

#| B<boo>
sub f($x) {1}
#= I<hoo>

If I run raku --doc=Markdown on that file I get

### sub f

```raku
sub f(
    $x
) returns Mu
```
B<boo>
I<hoo>

By contrast, B<boo> renders fine as **boo** inside a =head1 for instance, or between =begin/end pod markers, etc.

PS
I am not sure whether this is related, but it too is about declarator blocks.

[stuart-little]

Actually, I see Pod::To::HTML doesn't handle this either.. Take

#!/usr/bin/env raku
use v6;

#| B<BEFORE>
sub f($x) {1}
#= I<AFTER>

=begin pod
B<IN-POD>
=end pod

If I run raku --doc=HTML on it, somwehre towards the end of the html document I see

<div class="pod-body no-toc">
   <span class="pod-block-notimplemented">B&lt;BEFORE&gt;
I&lt;AFTER&gt;</span><section name="___top"><p><strong>IN-POD</strong></p>
                </section>
        </div>

so IN-POD is rendered as strong, but BEFORE and AFTER are not (and receive the eloquently-named class pod-block-notimplemented :)).