Slang 0.19.0

[Janther]

Adapting our code to the following changes in slang.

• consolidate .children() APIs and iterators NomicFoundation/slang#1156 3a82f06 Thanks @OmarTawfik! - fix node.children() and parseOutput.errors() return types
• add Compilation API NomicFoundation/slang#1194 7a25d63 Thanks @OmarTawfik! - split parser/Parser.supportedVersions() into a new utils/LanguageFacts API, with allVersions(), earliestVersion(), and latestVersion() methods.
• API improvements NomicFoundation/slang#1223 3e85a14 Thanks @OmarTawfik! - split Parser.parse() API into parse_file_contents() and parse_nonterminal().
• API improvements NomicFoundation/slang#1223 3e85a14 Thanks @OmarTawfik! - rename Query.parse() to Query.create(), and provide exact TextRange for any errors it returns.
• unreserve AddressKeyword and allow it to be used as a field name NomicFoundation/slang#1134 cfc62f2 Thanks @OmarTawfik! - remove YulPathComponent and just use YulIdentifier instead.