Reference docs highlight EBNF oddly

[ckipp01]

Compiler version

3.3.1-RC1-bin-20230204-a356581-NIGHTLY

Minimized code

This isn't a code issue, but rather a scaladocs issue. On this page the EBNF tries to highlight as if it's just a normal string resulting in odd looking output.

Output

Expectation

I'd expect it to correctly color this as EBNF. No idea why but when I looked at the code it seems to be marked as rust?

[ckipp01]

Looks like this is a duplication of #14697. Closing in favor of that.