* compiler: change s.line_nr in just one place, so that s.last_nl_pos will be updated in tandem too.
* Cleanup spurious spaces.
* Store ScannerPos info inside the cached tokens.
Use the stored information when errors are encountered.
* Fix#2079 ( cannot use type...in assignment ).
* do not store scannerpos per each token, instead rescan the source once on error to get the position.
* compiler: implement highlighting for errors. Use only line/col info stored in the cached tokens.
* fixing building on windows
* Split can_show_color to _nix and _win files.