Allow absolute messages in PrefixedTranslator using "//"

[JanMikes]

This is just idea about behavior, when using prefixed translator, snippet of code will say more then 1000 words:

If you agree with this, i can send PR and cover with tests.

$prefixedTranslator = $translator->domain("some.domain");
$prefixedTranslator->translate("//namespace.xx"); // result $translator->translate("namespace.xx")

// What i have to do is:
$prefixedTranslator->unwrap()->translate("namespace.xx");

There is 1 very good usecase, i wanted to use global translation required message in config.neon:

forms:
    messages:
        FILLED: "forms.required"

But afterwards i can not use prefixed translator in forms like this:

$form->setTranslator($this->translator->domain("forms.signIn");
$input->setRequired(); // Result is $translator->translate("forms.signIn.forms.required") instead of just "form.required"

[fprochazka]

I like the idea 👍

[JanMikes]

Ok, i will go for it!

[JanMikes]

Implemented by #88

[fprochazka]

But it's not merged yet :)

[zraly]

It seems, that absolute domain does not work properly, if a macro is defined later. Example:

@layout.latte:

<title>{block title}{/block}</title>

template1.latte:

{translator cup.fork /}
<h2>{block title}{_//cup.fork.header}{/block}</h2>

Translates the header right in template1.latte, but does not translate the title in @layout.latte. Debug bar says, that translation domain is //cup and keeps it untranslated.