0.5.6

This is a minor feature release, improving various error messages.

For example, the test example/test/optional3.fail.nmfu now errors with

Compile error: Ambiguous transitions detected while joining DFAs on character 't'
Due to:
- line 3:
        /(fg|[et])est/; // ambiguous on first letter (in t case)
             ^
- direct match 'text'[0]:
  at line 6:
    "text";

New Features

• When generating an error about ambiguity, show specific characters causing the ambiguity where possible. (4ef3b56, cebb198)
• Give error names to states and transitions in direct / case-insensitive matches to allow mentioning specific parts of a match in an error. (b05a690)
• Properly annotate regular expression matches with debug line/column information. (a9e372e, 6b8a9fa, d5f4450)
• Report case match ambiguity errors with better specificity (annotating on transition instead of state.) (c342c1b)

Bugs Fixed

• Fix a typo in error messages which do not have a line number associated with them. (69bbacb)
• Fix line number associations for loop & foreach statements. (bc48bf2)
• Give line numbers for duplicate definition errors. (0c0323e)
• When using -ddtree, ensure the dump still occurs if an error is thrown. (50ce062)