- Fixed compilation of the "any" pattern in lexer definitions -- it should match anything *except* newlines.
- Enable the graph backend for now so we can work out an issue with the compilation of the Any patterns.
- Fixed a reversed condition -- caused ASCII characters to be emitted twice (once as normal, and again as Unicode characters).
- Switch back to the fslex-compatible backend.
- Fixed some small canonicalization bugs which caused certain Regex cases not to be in canonical form (thereby causing unnecessary DFA states to be created).