Dialect knobs that change parse behavior between strict CommonMark and
MDX. Default is MDX-friendly so capital JSX components round-trip as
JsxElement nodes; spec runners can flip cm_strict_html_blocks to
treat capital lowercase tags as CM 4.6 type-7 raw HTML.
Lex + parse source in one shot, dropping all diagnostics. Convenience for
tests + the parse bin; production callers should construct their own
DiagnosticEngine.
Lex s and run the inline parser on it. Returns the inline Node
list (Text, InlineCode, Bold, Italic, Strikethrough, Link, …).
Used by table cells, which receive raw cell strings rather than
pre-tokenised inline content.