compiler: cleaned up unit tests
compiler: cleaned up unit tests
compiler: more unit tests
compiler: eliminated UnusedImport warnings
compiler: failed attempt at handling comments properly
compiler: working SPARK scanner
compiler: start of a SPARK parser
compiler: parser handling service definitions
compiler: support more constructs
compiler: parsing remaining constructs, comments
compiler: rewrote Compiler as AST visitor
compiler: working for real inputs
compiler: rewrote scanner to use own algorithm